From 0323c4070cd29d7963de236e52b86d33812d99ef Mon Sep 17 00:00:00 2001
From: Agha Muhammad Aslam <aghaaslam246@gmail.com>
Date: Fri, 15 Dec 2023 16:13:23 +0100
Subject: [PATCH 1/2] Update project settings and configs

This commit includes a significant update and cleanup of project settings stored in .idea and workspace.xml files. Additionally, Maven wrapper scripts were added to support the build process. A related project configuration file (.iml) was removed.
---
 .idea/vcs.xml                                 |   6 +
 .idea/workspace.xml                           | 345 +++------
 fxbinarytree.iml                              |  15 -
 mvnw                                          | 316 ++++++++
 mvnw.cmd                                      | 188 +++++
 pom.xml                                       |  70 +-
 .../ericcanull/fxbinarytree}/app/Main.java    |  71 +-
 .../controller/GraphicsController.java        | 261 +++----
 .../controller/GraphicsTree.java              | 704 +++++++++---------
 .../fxbinarytree}/shape/Circle.java           | 407 +++++-----
 .../ericcanull/fxbinarytree}/shape/Line.java  | 218 +++---
 .../fxbinarytree}/tree/BinarySearchTree.java  | 525 ++++++-------
 .../fxbinarytree}/tree/BinaryTreeBasis.java   | 130 ++--
 .../fxbinarytree}/tree/QueueException.java    |  32 +-
 .../fxbinarytree}/tree/TreeException.java     |  32 +-
 .../fxbinarytree}/tree/TreeIterator.java      | 228 +++---
 .../fxbinarytree}/tree/TreeNode.java          |  58 +-
 src/main/java/module-info.java                |  13 +
 .../fxbinarytree}/fxml/FXMLGraphicsPanel.fxml |   2 +-
 .../image/binarytree_screenshot.png           | Bin
 .../style/graphics_controller.css             |   1 +
 target/classes/app/Main.class                 | Bin 1153 -> 0 bytes
 .../ericcanull/fxbinarytree/app/Main.class    | Bin 0 -> 1377 bytes
 .../controller/GraphicsController.class       | Bin 0 -> 6396 bytes
 .../controller/GraphicsTree.class             | Bin 0 -> 9613 bytes
 .../fxbinarytree}/fxml/FXMLGraphicsPanel.fxml |   2 +-
 .../image/binarytree_screenshot.png           | Bin 0 -> 38550 bytes
 .../fxbinarytree/shape/Circle.class           | Bin 0 -> 4437 bytes
 .../ericcanull/fxbinarytree/shape/Line.class  | Bin 0 -> 2358 bytes
 .../style/graphics_controller.css             |   1 +
 .../fxbinarytree/tree/BinarySearchTree.class  | Bin 0 -> 4419 bytes
 .../fxbinarytree/tree/BinaryTreeBasis.class   | Bin 0 -> 1320 bytes
 .../fxbinarytree/tree/QueueException.class    | Bin 0 -> 407 bytes
 .../fxbinarytree/tree/TreeException.class     | Bin 0 -> 404 bytes
 .../fxbinarytree/tree/TreeIterator.class      | Bin 0 -> 2709 bytes
 .../fxbinarytree/tree/TreeNode.class          | Bin 0 -> 677 bytes
 .../controller/GraphicsController.class       | Bin 6259 -> 0 bytes
 target/classes/controller/GraphicsTree.class  | Bin 9043 -> 0 bytes
 target/classes/module-info.class              | Bin 0 -> 355 bytes
 target/classes/shape/Circle.class             | Bin 4379 -> 0 bytes
 target/classes/shape/Line.class               | Bin 2082 -> 0 bytes
 target/classes/tree/BinarySearchTree.class    | Bin 3759 -> 0 bytes
 target/classes/tree/BinaryTreeBasis.class     | Bin 1012 -> 0 bytes
 target/classes/tree/QueueException.class      | Bin 351 -> 0 bytes
 target/classes/tree/TreeException.class       | Bin 348 -> 0 bytes
 target/classes/tree/TreeIterator.class        | Bin 2348 -> 0 bytes
 target/classes/tree/TreeNode.class            | Bin 509 -> 0 bytes
 47 files changed, 2023 insertions(+), 1602 deletions(-)
 delete mode 100644 fxbinarytree.iml
 create mode 100755 mvnw
 create mode 100644 mvnw.cmd
 rename src/main/java/{ => com/ericcanull/fxbinarytree}/app/Main.java (67%)
 rename src/main/java/{ => com/ericcanull/fxbinarytree}/controller/GraphicsController.java (95%)
 rename src/main/java/{ => com/ericcanull/fxbinarytree}/controller/GraphicsTree.java (96%)
 rename src/main/java/{ => com/ericcanull/fxbinarytree}/shape/Circle.java (89%)
 rename src/main/java/{ => com/ericcanull/fxbinarytree}/shape/Line.java (95%)
 rename src/main/java/{ => com/ericcanull/fxbinarytree}/tree/BinarySearchTree.java (95%)
 rename src/main/java/{ => com/ericcanull/fxbinarytree}/tree/BinaryTreeBasis.java (92%)
 rename src/main/java/{ => com/ericcanull/fxbinarytree}/tree/QueueException.java (89%)
 rename src/main/java/{ => com/ericcanull/fxbinarytree}/tree/TreeException.java (89%)
 rename src/main/java/{ => com/ericcanull/fxbinarytree}/tree/TreeIterator.java (95%)
 rename src/main/java/{ => com/ericcanull/fxbinarytree}/tree/TreeNode.java (86%)
 create mode 100644 src/main/java/module-info.java
 rename {target/classes => src/main/resources/com/ericcanull/fxbinarytree}/fxml/FXMLGraphicsPanel.fxml (96%)
 rename src/main/resources/{ => com/ericcanull/fxbinarytree}/image/binarytree_screenshot.png (100%)
 rename {target/classes => src/main/resources/com/ericcanull/fxbinarytree}/style/graphics_controller.css (99%)
 delete mode 100644 target/classes/app/Main.class
 create mode 100644 target/classes/com/ericcanull/fxbinarytree/app/Main.class
 create mode 100644 target/classes/com/ericcanull/fxbinarytree/controller/GraphicsController.class
 create mode 100644 target/classes/com/ericcanull/fxbinarytree/controller/GraphicsTree.class
 rename {src/main/resources => target/classes/com/ericcanull/fxbinarytree}/fxml/FXMLGraphicsPanel.fxml (96%)
 create mode 100644 target/classes/com/ericcanull/fxbinarytree/image/binarytree_screenshot.png
 create mode 100644 target/classes/com/ericcanull/fxbinarytree/shape/Circle.class
 create mode 100644 target/classes/com/ericcanull/fxbinarytree/shape/Line.class
 rename {src/main/resources => target/classes/com/ericcanull/fxbinarytree}/style/graphics_controller.css (99%)
 create mode 100644 target/classes/com/ericcanull/fxbinarytree/tree/BinarySearchTree.class
 create mode 100644 target/classes/com/ericcanull/fxbinarytree/tree/BinaryTreeBasis.class
 create mode 100644 target/classes/com/ericcanull/fxbinarytree/tree/QueueException.class
 create mode 100644 target/classes/com/ericcanull/fxbinarytree/tree/TreeException.class
 create mode 100644 target/classes/com/ericcanull/fxbinarytree/tree/TreeIterator.class
 create mode 100644 target/classes/com/ericcanull/fxbinarytree/tree/TreeNode.class
 delete mode 100644 target/classes/controller/GraphicsController.class
 delete mode 100644 target/classes/controller/GraphicsTree.class
 create mode 100644 target/classes/module-info.class
 delete mode 100644 target/classes/shape/Circle.class
 delete mode 100644 target/classes/shape/Line.class
 delete mode 100644 target/classes/tree/BinarySearchTree.class
 delete mode 100644 target/classes/tree/BinaryTreeBasis.class
 delete mode 100644 target/classes/tree/QueueException.class
 delete mode 100644 target/classes/tree/TreeException.class
 delete mode 100644 target/classes/tree/TreeIterator.class
 delete mode 100644 target/classes/tree/TreeNode.class

diff --git a/.idea/vcs.xml b/.idea/vcs.xml
index 35eb1dd..7ddfc9e 100644
--- a/.idea/vcs.xml
+++ b/.idea/vcs.xml
@@ -1,5 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
+  <component name="CommitMessageInspectionProfile">
+    <profile version="1.0">
+      <inspection_tool class="CommitFormat" enabled="true" level="WARNING" enabled_by_default="true" />
+      <inspection_tool class="CommitNamingConvention" enabled="true" level="WARNING" enabled_by_default="true" />
+    </profile>
+  </component>
   <component name="VcsDirectoryMappings">
     <mapping directory="" vcs="Git" />
   </component>
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index c3f0e24..f5c0868 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -1,29 +1,27 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
+  <component name="AutoImportSettings">
+    <option name="autoReloadType" value="ALL" />
+  </component>
   <component name="ChangeListManager">
     <list default="true" id="fa39dde5-8982-452b-95c3-23d6201b91a8" name="Default" comment="">
-      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/target/classes/controller/GraphicsController.class" afterPath="$PROJECT_DIR$/target/classes/controller/GraphicsController.class" />
-      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/target/classes/controller/GraphicsTree.class" afterPath="$PROJECT_DIR$/target/classes/controller/GraphicsTree.class" />
-      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/target/classes/shape/Circle.class" afterPath="$PROJECT_DIR$/target/classes/shape/Circle.class" />
-      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/target/classes/shape/Line.class" afterPath="$PROJECT_DIR$/target/classes/shape/Line.class" />
-      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/target/classes/tree/BinarySearchTree.class" afterPath="$PROJECT_DIR$/target/classes/tree/BinarySearchTree.class" />
-      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/.idea/workspace.xml" afterPath="$PROJECT_DIR$/.idea/workspace.xml" />
-      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/src/main/java/controller/GraphicsController.java" afterPath="$PROJECT_DIR$/src/main/java/controller/GraphicsController.java" />
-      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/src/main/java/controller/GraphicsTree.java" afterPath="$PROJECT_DIR$/src/main/java/controller/GraphicsTree.java" />
-      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/src/main/java/shape/Circle.java" afterPath="$PROJECT_DIR$/src/main/java/shape/Circle.java" />
-      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/src/main/java/shape/Line.java" afterPath="$PROJECT_DIR$/src/main/java/shape/Line.java" />
-      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/src/main/java/tree/BinarySearchTree.java" afterPath="$PROJECT_DIR$/src/main/java/tree/BinarySearchTree.java" />
+      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/controller/GraphicsController.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/controller/GraphicsController.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/controller/GraphicsTree.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/controller/GraphicsTree.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/shape/Circle.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/shape/Circle.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/shape/Line.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/shape/Line.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/tree/BinarySearchTree.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/tree/BinarySearchTree.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/target/classes/controller/GraphicsController.class" beforeDir="false" afterPath="$PROJECT_DIR$/target/classes/controller/GraphicsController.class" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/target/classes/controller/GraphicsTree.class" beforeDir="false" afterPath="$PROJECT_DIR$/target/classes/controller/GraphicsTree.class" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/target/classes/shape/Circle.class" beforeDir="false" afterPath="$PROJECT_DIR$/target/classes/shape/Circle.class" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/target/classes/shape/Line.class" beforeDir="false" afterPath="$PROJECT_DIR$/target/classes/shape/Line.class" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/target/classes/tree/BinarySearchTree.class" beforeDir="false" afterPath="$PROJECT_DIR$/target/classes/tree/BinarySearchTree.class" afterDir="false" />
     </list>
-    <ignored path="$PROJECT_DIR$/out/" />
-    <ignored path="$PROJECT_DIR$/target/" />
-    <option name="EXCLUDED_CONVERTED_TO_IGNORED" value="true" />
-    <option name="TRACKING_ENABLED" value="true" />
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
     <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
     <option name="LAST_RESOLUTION" value="IGNORE" />
   </component>
-  <component name="ExecutionTargetManager" SELECTED_TARGET="default_target" />
   <component name="FileEditorManager">
     <leaf SIDE_TABS_SIZE_LIMIT_KEY="300">
       <file leaf-file-name="Main.java" pinned="false" current-in-tab="true">
@@ -163,12 +161,8 @@
     <detection-done>true</detection-done>
     <sorting>DEFINITION_ORDER</sorting>
   </component>
-  <component name="MavenImportPreferences">
-    <option name="importingSettings">
-      <MavenImportingSettings>
-        <option name="importAutomatically" value="true" />
-      </MavenImportingSettings>
-    </option>
+  <component name="MarkdownSettingsMigration">
+    <option name="stateVersion" value="1" />
   </component>
   <component name="MavenProjectNavigator">
     <treeState>
@@ -184,11 +178,15 @@
       </PATH>
     </treeState>
   </component>
+  <component name="ProjectColorInfo"><![CDATA[{
+  "associatedIndex": 7
+}]]></component>
   <component name="ProjectFrameBounds">
     <option name="x" value="82" />
     <option name="width" value="1838" />
     <option name="height" value="1080" />
   </component>
+  <component name="ProjectId" id="2ZaE1XBZRalhhvj7mzA1yyQPSME" />
   <component name="ProjectView">
     <navigator currentView="ProjectPane" proportions="" version="1">
       <flattenPackages />
@@ -329,14 +327,26 @@
       <pane id="PackagesPane" />
     </panes>
   </component>
-  <component name="PropertiesComponent">
-    <property name="WebServerToolWindowFactoryState" value="false" />
-    <property name="aspect.path.notification.shown" value="true" />
-    <property name="project.structure.last.edited" value="SDKs" />
-    <property name="project.structure.proportion" value="0.0" />
-    <property name="project.structure.side.proportion" value="0.2" />
-    <property name="run.code.analysis.last.selected.profile" value="pProject Default" />
+  <component name="ProjectViewState">
+    <option name="autoscrollFromSource" value="true" />
+    <option name="hideEmptyMiddlePackages" value="true" />
+    <option name="showLibraryContents" value="true" />
+    <option name="showMembers" value="true" />
+    <option name="showVisibilityIcons" value="true" />
   </component>
+  <component name="PropertiesComponent"><![CDATA[{
+  "keyToString": {
+    "Application.com.ericcanull.fxbinarytree.app.Main.executor": "Run",
+    "RunOnceActivity.OpenProjectViewOnStart": "true",
+    "RunOnceActivity.ShowReadmeOnStart": "true",
+    "git-widget-placeholder": "master",
+    "kotlin-language-version-configured": "true",
+    "last_opened_file_path": "/Users/aslam/Documents/GitHub/fxbinarytree-fork",
+    "nodejs_package_manager_path": "npm",
+    "settings.editor.selected.configurable": "reference.settings.project.maven.importing",
+    "vue.rearranger.settings.migration": "true"
+  }
+}]]></component>
   <component name="RecentsManager">
     <key name="CopyFile.RECENT_KEYS">
       <recent name="$PROJECT_DIR$/src/main/resources/image" />
@@ -345,41 +355,7 @@
       <recent name="$PROJECT_DIR$/src/main/java" />
     </key>
   </component>
-  <component name="RunDashboard">
-    <option name="ruleStates">
-      <list>
-        <RuleState>
-          <option name="name" value="ConfigurationTypeDashboardGroupingRule" />
-        </RuleState>
-        <RuleState>
-          <option name="name" value="StatusDashboardGroupingRule" />
-        </RuleState>
-      </list>
-    </option>
-  </component>
-  <component name="RunManager" selected="Application.Main">
-    <configuration default="false" name="Main" type="Application" factoryName="Application" temporary="true" nameIsGenerated="true">
-      <extension name="coverage" enabled="false" merge="false" sample_coverage="true" runner="idea" />
-      <option name="MAIN_CLASS_NAME" value="app.Main" />
-      <option name="VM_PARAMETERS" />
-      <option name="PROGRAM_PARAMETERS" />
-      <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$" />
-      <option name="ALTERNATIVE_JRE_PATH_ENABLED" value="false" />
-      <option name="ALTERNATIVE_JRE_PATH" />
-      <option name="ENABLE_SWING_INSPECTOR" value="false" />
-      <option name="ENV_VARIABLES" />
-      <option name="PASS_PARENT_ENVS" value="true" />
-      <module name="fxbinarytree" />
-      <envs />
-      <method />
-    </configuration>
-    <configuration default="true" type="#org.jetbrains.idea.devkit.run.PluginConfigurationType" factoryName="Plugin">
-      <module name="" />
-      <option name="VM_PARAMETERS" value="-Xmx512m -Xms256m -XX:MaxPermSize=250m -ea" />
-      <option name="PROGRAM_PARAMETERS" />
-      <predefined_log_file id="idea.log" enabled="true" />
-      <method />
-    </configuration>
+  <component name="RunManager">
     <configuration default="true" type="AndroidRunConfigurationType" factoryName="Android App">
       <module name="" />
       <option name="DEPLOY" value="true" />
@@ -443,21 +419,6 @@
       <module />
       <method />
     </configuration>
-    <configuration default="true" type="Application" factoryName="Application">
-      <extension name="coverage" enabled="false" merge="false" sample_coverage="true" runner="idea" />
-      <option name="MAIN_CLASS_NAME" />
-      <option name="VM_PARAMETERS" />
-      <option name="PROGRAM_PARAMETERS" />
-      <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$" />
-      <option name="ALTERNATIVE_JRE_PATH_ENABLED" value="false" />
-      <option name="ALTERNATIVE_JRE_PATH" />
-      <option name="ENABLE_SWING_INSPECTOR" value="false" />
-      <option name="ENV_VARIABLES" />
-      <option name="PASS_PARENT_ENVS" value="true" />
-      <module name="" />
-      <envs />
-      <method />
-    </configuration>
     <configuration default="true" type="ArquillianJUnit" factoryName="" nameIsGenerated="true">
       <extension name="coverage" enabled="false" merge="false" sample_coverage="true" runner="idea" />
       <module name="" />
@@ -520,25 +481,6 @@
     <configuration default="true" type="Cold Fusion runner description" factoryName="Cold Fusion" custom_browser="" web_path="">
       <method />
     </configuration>
-    <configuration default="true" type="CucumberJavaRunConfigurationType" factoryName="Cucumber java">
-      <extension name="coverage" enabled="false" merge="false" sample_coverage="true" runner="idea" />
-      <option name="myFilePath" />
-      <option name="GLUE" />
-      <option name="myNameFilter" />
-      <option name="myGeneratedName" />
-      <option name="MAIN_CLASS_NAME" />
-      <option name="VM_PARAMETERS" />
-      <option name="PROGRAM_PARAMETERS" />
-      <option name="WORKING_DIRECTORY" />
-      <option name="ALTERNATIVE_JRE_PATH_ENABLED" value="false" />
-      <option name="ALTERNATIVE_JRE_PATH" />
-      <option name="ENABLE_SWING_INSPECTOR" value="false" />
-      <option name="ENV_VARIABLES" />
-      <option name="PASS_PARENT_ENVS" value="true" />
-      <module name="" />
-      <envs />
-      <method />
-    </configuration>
     <configuration default="true" type="FlashRunConfigurationType" factoryName="Flash App">
       <option name="BCName" value="" />
       <option name="IOSSimulatorSdkPath" value="" />
@@ -588,22 +530,6 @@
       <option name="trusted" value="true" />
       <method />
     </configuration>
-    <configuration default="true" type="GradleRunConfiguration" factoryName="Gradle">
-      <ExternalSystemSettings>
-        <option name="executionName" />
-        <option name="externalProjectPath" />
-        <option name="externalSystemIdString" value="GRADLE" />
-        <option name="scriptParameters" />
-        <option name="taskDescriptions">
-          <list />
-        </option>
-        <option name="taskNames">
-          <list />
-        </option>
-        <option name="vmOptions" />
-      </ExternalSystemSettings>
-      <method />
-    </configuration>
     <configuration default="true" type="GrailsRunConfigurationType" factoryName="Grails">
       <setting name="vmparams" value="" />
       <setting name="cmdLine" value="run-app" />
@@ -613,168 +539,92 @@
       <setting name="depsClasspath" value="false" />
       <method />
     </configuration>
-    <configuration default="true" type="JUnit" factoryName="JUnit">
-      <extension name="coverage" enabled="false" merge="false" sample_coverage="true" runner="idea" />
+    <configuration default="true" type="#org.jetbrains.idea.devkit.run.PluginConfigurationType" factoryName="Plugin">
       <module name="" />
-      <option name="ALTERNATIVE_JRE_PATH_ENABLED" value="false" />
-      <option name="ALTERNATIVE_JRE_PATH" />
-      <option name="PACKAGE_NAME" />
-      <option name="MAIN_CLASS_NAME" />
-      <option name="METHOD_NAME" />
-      <option name="TEST_OBJECT" value="class" />
-      <option name="VM_PARAMETERS" value="-ea" />
-      <option name="PARAMETERS" />
-      <option name="WORKING_DIRECTORY" value="$MODULE_DIR$" />
-      <option name="ENV_VARIABLES" />
-      <option name="PASS_PARENT_ENVS" value="true" />
-      <option name="TEST_SEARCH_SCOPE">
-        <value defaultName="singleModule" />
-      </option>
-      <envs />
-      <patterns />
-      <method />
-    </configuration>
-    <configuration default="true" type="JarApplication" factoryName="JAR Application">
-      <extension name="coverage" enabled="false" merge="false" sample_coverage="true" runner="idea" />
-      <envs />
-      <method />
-    </configuration>
-    <configuration default="true" type="Java Scratch" factoryName="Java Scratch">
-      <extension name="coverage" enabled="false" merge="false" sample_coverage="true" runner="idea" />
-      <option name="SCRATCH_FILE_ID" value="0" />
-      <option name="MAIN_CLASS_NAME" />
-      <option name="VM_PARAMETERS" />
+      <option name="VM_PARAMETERS" value="-Xmx512m -Xms256m -XX:MaxPermSize=250m -ea" />
       <option name="PROGRAM_PARAMETERS" />
-      <option name="WORKING_DIRECTORY" />
-      <option name="ALTERNATIVE_JRE_PATH_ENABLED" value="false" />
-      <option name="ALTERNATIVE_JRE_PATH" />
-      <option name="ENABLE_SWING_INSPECTOR" value="false" />
-      <option name="ENV_VARIABLES" />
-      <option name="PASS_PARENT_ENVS" value="true" />
-      <module name="" />
-      <envs />
+      <predefined_log_file id="idea.log" enabled="true" />
       <method />
     </configuration>
-    <configuration default="true" type="JavaScriptTestRunnerJest" factoryName="Jest">
-      <node-interpreter value="project" />
-      <working-dir value="" />
-      <envs />
-      <scope-kind value="ALL" />
+    <configuration default="true" type="osgi.bnd.run" factoryName="Run Launcher">
       <method />
     </configuration>
-    <configuration default="true" type="JavaScriptTestRunnerProtractor" factoryName="Protractor">
-      <config-file value="" />
-      <node-interpreter value="project" />
-      <envs />
+    <configuration default="true" type="osgi.bnd.run" factoryName="Test Launcher (JUnit)">
       <method />
     </configuration>
-    <configuration default="true" type="JavascriptDebugType" factoryName="JavaScript Debug">
-      <method />
+    <configuration default="true" type="Application" factoryName="Application">
+      <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$" />
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
     </configuration>
-    <configuration default="true" type="JetRunConfigurationType" factoryName="Kotlin">
-      <extension name="coverage" enabled="false" merge="false" sample_coverage="true" runner="idea" />
-      <option name="MAIN_CLASS_NAME" />
-      <option name="VM_PARAMETERS" />
-      <option name="PROGRAM_PARAMETERS" />
-      <option name="WORKING_DIRECTORY" />
-      <option name="ALTERNATIVE_JRE_PATH_ENABLED" value="false" />
-      <option name="ALTERNATIVE_JRE_PATH" />
-      <option name="PASS_PARENT_ENVS" value="true" />
+    <configuration name="com.ericcanull.fxbinarytree.app.Main" type="Application" factoryName="Application" temporary="true" nameIsGenerated="true">
+      <option name="MAIN_CLASS_NAME" value="com.ericcanull.fxbinarytree.app.Main" />
       <module name="fxbinarytree" />
-      <envs />
-      <method />
+      <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$" />
+      <extension name="coverage">
+        <pattern>
+          <option name="PATTERN" value="com.ericcanull.fxbinarytree.app.*" />
+          <option name="ENABLED" value="true" />
+        </pattern>
+      </extension>
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
     </configuration>
-    <configuration default="true" type="KotlinStandaloneScriptRunConfigurationType" factoryName="Kotlin script">
-      <extension name="coverage" enabled="false" merge="false" sample_coverage="true" runner="idea" />
-      <option name="filePath" />
-      <option name="vmParameters" />
-      <option name="alternativeJrePath" />
-      <option name="programParameters" />
-      <option name="passParentEnvs" value="true" />
-      <option name="workingDirectory" />
-      <option name="isAlternativeJrePathEnabled" value="false" />
-      <envs />
-      <method />
+    <configuration default="true" type="CucumberJavaRunConfigurationType" factoryName="Cucumber java">
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
     </configuration>
-    <configuration default="true" type="Remote" factoryName="Remote">
-      <option name="USE_SOCKET_TRANSPORT" value="true" />
-      <option name="SERVER_MODE" value="false" />
-      <option name="SHMEM_ADDRESS" value="javadebug" />
-      <option name="HOST" value="localhost" />
-      <option name="PORT" value="5005" />
-      <method />
+    <configuration default="true" type="JUnit" factoryName="JUnit">
+      <option name="TEST_OBJECT" value="class" />
+      <option name="WORKING_DIRECTORY" value="$MODULE_DIR$" />
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
     </configuration>
-    <configuration default="true" type="SpringBootApplicationConfigurationType" factoryName="Spring Boot">
-      <extension name="coverage" enabled="false" merge="false" sample_coverage="true" runner="idea" />
-      <module name="" />
-      <envs />
-      <method />
+    <configuration default="true" type="JetRunConfigurationType">
+      <module name="fxbinarytree" />
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
     </configuration>
-    <configuration default="true" type="TestNG" factoryName="TestNG">
-      <extension name="coverage" enabled="false" merge="false" sample_coverage="true" runner="idea" />
-      <module name="" />
-      <option name="ALTERNATIVE_JRE_PATH_ENABLED" value="false" />
-      <option name="ALTERNATIVE_JRE_PATH" />
-      <option name="SUITE_NAME" />
-      <option name="PACKAGE_NAME" />
-      <option name="MAIN_CLASS_NAME" />
-      <option name="METHOD_NAME" />
-      <option name="GROUP_NAME" />
+    <configuration default="true" type="TestNG">
       <option name="TEST_OBJECT" value="CLASS" />
-      <option name="VM_PARAMETERS" value="-ea" />
-      <option name="PARAMETERS" />
       <option name="WORKING_DIRECTORY" value="$MODULE_DIR$" />
-      <option name="OUTPUT_DIRECTORY" />
-      <option name="ANNOTATION_TYPE" />
-      <option name="ENV_VARIABLES" />
-      <option name="PASS_PARENT_ENVS" value="true" />
-      <option name="TEST_SEARCH_SCOPE">
-        <value defaultName="singleModule" />
-      </option>
-      <option name="USE_DEFAULT_REPORTERS" value="false" />
-      <option name="PROPERTIES_FILE" />
-      <envs />
       <properties />
       <listeners />
-      <method />
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
     </configuration>
-    <configuration default="true" type="js.build_tools.gulp" factoryName="Gulp.js">
+    <configuration default="true" type="js.build_tools.gulp">
       <node-interpreter>project</node-interpreter>
       <node-options />
       <gulpfile />
       <tasks />
       <arguments />
       <envs />
-      <method />
-    </configuration>
-    <configuration default="true" type="js.build_tools.npm" factoryName="npm">
-      <command value="run" />
-      <scripts />
-      <node-interpreter value="project" />
-      <envs />
-      <method />
+      <method v="2" />
     </configuration>
-    <configuration default="true" type="osgi.bnd.run" factoryName="Run Launcher">
-      <method />
-    </configuration>
-    <configuration default="true" type="osgi.bnd.run" factoryName="Test Launcher (JUnit)">
-      <method />
-    </configuration>
-    <list size="1">
-      <item index="0" class="java.lang.String" itemvalue="Application.Main" />
-    </list>
     <recent_temporary>
-      <list size="1">
-        <item index="0" class="java.lang.String" itemvalue="Application.Main" />
+      <list>
+        <item itemvalue="Application.com.ericcanull.fxbinarytree.app.Main" />
       </list>
     </recent_temporary>
   </component>
-  <component name="ShelveChangesManager" show_recycled="false">
-    <option name="remove_strategy" value="false" />
+  <component name="SharedIndexes">
+    <attachedChunks>
+      <set>
+        <option value="jdk-21.0.1-openjdk-21.0.1-8336523bb0d9-55c9c8bc" />
+      </set>
+    </attachedChunks>
   </component>
+  <component name="SpellCheckerSettings" RuntimeDictionaries="0" Folders="0" CustomDictionaries="0" DefaultDictionary="application-level" UseSingleDictionary="true" transferred="true" />
   <component name="TaskManager">
     <task active="true" id="Default" summary="Default task">
-      <changelist id="fa39dde5-8982-452b-95c3-23d6201b91a8" name="Default" comment="" />
+      <changelist id="" name="Default" comment="" />
       <created>1499366758985</created>
       <option name="number" value="Default" />
       <option name="presentableId" value="Default" />
@@ -789,6 +639,7 @@
       <workItem from="1499898183017" duration="640000" />
       <workItem from="1500012397864" duration="603000" />
       <workItem from="1500360399244" duration="8000" />
+      <workItem from="1702651575682" duration="50000" />
     </task>
     <servers />
   </component>
@@ -832,10 +683,7 @@
     </layout>
   </component>
   <component name="TypeScriptGeneratedFilesManager">
-    <option name="processedProjectFiles" value="true" />
-  </component>
-  <component name="VcsContentAnnotationSettings">
-    <option name="myLimit" value="2678400000" />
+    <option name="version" value="3" />
   </component>
   <component name="XDebuggerManager">
     <breakpoint-manager>
@@ -843,12 +691,9 @@
         <line-breakpoint enabled="true" type="java-line">
           <url>file://$PROJECT_DIR$/src/main/java/tree/BinaryTreeBasis.java</url>
           <line>19</line>
-          <properties />
         </line-breakpoint>
       </breakpoints>
-      <option name="time" value="1" />
     </breakpoint-manager>
-    <watches-manager />
   </component>
   <component name="antWorkspaceConfiguration">
     <option name="IS_AUTOSCROLL_TO_SOURCE" value="false" />
diff --git a/fxbinarytree.iml b/fxbinarytree.iml
deleted file mode 100644
index c035f0b..0000000
--- a/fxbinarytree.iml
+++ /dev/null
@@ -1,15 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module org.jetbrains.idea.maven.project.MavenProjectsManager.isMavenModule="true" type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_8">
-    <output url="file://$MODULE_DIR$/target/classes" />
-    <output-test url="file://$MODULE_DIR$/target/test-classes" />
-    <content url="file://$MODULE_DIR$">
-      <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
-      <excludeFolder url="file://$MODULE_DIR$/target" />
-    </content>
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-  </component>
-</module>
\ No newline at end of file
diff --git a/mvnw b/mvnw
new file mode 100755
index 0000000..8a8fb22
--- /dev/null
+++ b/mvnw
@@ -0,0 +1,316 @@
+#!/bin/sh
+# ----------------------------------------------------------------------------
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#    https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+# ----------------------------------------------------------------------------
+
+# ----------------------------------------------------------------------------
+# Maven Start Up Batch script
+#
+# Required ENV vars:
+# ------------------
+#   JAVA_HOME - location of a JDK home dir
+#
+# Optional ENV vars
+# -----------------
+#   M2_HOME - location of maven2's installed home dir
+#   MAVEN_OPTS - parameters passed to the Java VM when running Maven
+#     e.g. to debug Maven itself, use
+#       set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
+#   MAVEN_SKIP_RC - flag to disable loading of mavenrc files
+# ----------------------------------------------------------------------------
+
+if [ -z "$MAVEN_SKIP_RC" ] ; then
+
+  if [ -f /usr/local/etc/mavenrc ] ; then
+    . /usr/local/etc/mavenrc
+  fi
+
+  if [ -f /etc/mavenrc ] ; then
+    . /etc/mavenrc
+  fi
+
+  if [ -f "$HOME/.mavenrc" ] ; then
+    . "$HOME/.mavenrc"
+  fi
+
+fi
+
+# OS specific support.  $var _must_ be set to either true or false.
+cygwin=false;
+darwin=false;
+mingw=false
+case "`uname`" in
+  CYGWIN*) cygwin=true ;;
+  MINGW*) mingw=true;;
+  Darwin*) darwin=true
+    # Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home
+    # See https://developer.apple.com/library/mac/qa/qa1170/_index.html
+    if [ -z "$JAVA_HOME" ]; then
+      if [ -x "/usr/libexec/java_home" ]; then
+        export JAVA_HOME="`/usr/libexec/java_home`"
+      else
+        export JAVA_HOME="/Library/Java/Home"
+      fi
+    fi
+    ;;
+esac
+
+if [ -z "$JAVA_HOME" ] ; then
+  if [ -r /etc/gentoo-release ] ; then
+    JAVA_HOME=`java-config --jre-home`
+  fi
+fi
+
+if [ -z "$M2_HOME" ] ; then
+  ## resolve links - $0 may be a link to maven's home
+  PRG="$0"
+
+  # need this for relative symlinks
+  while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+      PRG="$link"
+    else
+      PRG="`dirname "$PRG"`/$link"
+    fi
+  done
+
+  saveddir=`pwd`
+
+  M2_HOME=`dirname "$PRG"`/..
+
+  # make it fully qualified
+  M2_HOME=`cd "$M2_HOME" && pwd`
+
+  cd "$saveddir"
+  # echo Using m2 at $M2_HOME
+fi
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched
+if $cygwin ; then
+  [ -n "$M2_HOME" ] &&
+    M2_HOME=`cygpath --unix "$M2_HOME"`
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+  [ -n "$CLASSPATH" ] &&
+    CLASSPATH=`cygpath --path --unix "$CLASSPATH"`
+fi
+
+# For Mingw, ensure paths are in UNIX format before anything is touched
+if $mingw ; then
+  [ -n "$M2_HOME" ] &&
+    M2_HOME="`(cd "$M2_HOME"; pwd)`"
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`"
+fi
+
+if [ -z "$JAVA_HOME" ]; then
+  javaExecutable="`which javac`"
+  if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then
+    # readlink(1) is not available as standard on Solaris 10.
+    readLink=`which readlink`
+    if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then
+      if $darwin ; then
+        javaHome="`dirname \"$javaExecutable\"`"
+        javaExecutable="`cd \"$javaHome\" && pwd -P`/javac"
+      else
+        javaExecutable="`readlink -f \"$javaExecutable\"`"
+      fi
+      javaHome="`dirname \"$javaExecutable\"`"
+      javaHome=`expr "$javaHome" : '\(.*\)/bin'`
+      JAVA_HOME="$javaHome"
+      export JAVA_HOME
+    fi
+  fi
+fi
+
+if [ -z "$JAVACMD" ] ; then
+  if [ -n "$JAVA_HOME"  ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+      # IBM's JDK on AIX uses strange locations for the executables
+      JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+      JAVACMD="$JAVA_HOME/bin/java"
+    fi
+  else
+    JAVACMD="`\\unset -f command; \\command -v java`"
+  fi
+fi
+
+if [ ! -x "$JAVACMD" ] ; then
+  echo "Error: JAVA_HOME is not defined correctly." >&2
+  echo "  We cannot execute $JAVACMD" >&2
+  exit 1
+fi
+
+if [ -z "$JAVA_HOME" ] ; then
+  echo "Warning: JAVA_HOME environment variable is not set."
+fi
+
+CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher
+
+# traverses directory structure from process work directory to filesystem root
+# first directory with .mvn subdirectory is considered project base directory
+find_maven_basedir() {
+
+  if [ -z "$1" ]
+  then
+    echo "Path not specified to find_maven_basedir"
+    return 1
+  fi
+
+  basedir="$1"
+  wdir="$1"
+  while [ "$wdir" != '/' ] ; do
+    if [ -d "$wdir"/.mvn ] ; then
+      basedir=$wdir
+      break
+    fi
+    # workaround for JBEAP-8937 (on Solaris 10/Sparc)
+    if [ -d "${wdir}" ]; then
+      wdir=`cd "$wdir/.."; pwd`
+    fi
+    # end of workaround
+  done
+  echo "${basedir}"
+}
+
+# concatenates all lines of a file
+concat_lines() {
+  if [ -f "$1" ]; then
+    echo "$(tr -s '\n' ' ' < "$1")"
+  fi
+}
+
+BASE_DIR=`find_maven_basedir "$(pwd)"`
+if [ -z "$BASE_DIR" ]; then
+  exit 1;
+fi
+
+##########################################################################################
+# Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
+# This allows using the maven wrapper in projects that prohibit checking in binary data.
+##########################################################################################
+if [ -r "$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" ]; then
+    if [ "$MVNW_VERBOSE" = true ]; then
+      echo "Found .mvn/wrapper/maven-wrapper.jar"
+    fi
+else
+    if [ "$MVNW_VERBOSE" = true ]; then
+      echo "Couldn't find .mvn/wrapper/maven-wrapper.jar, downloading it ..."
+    fi
+    if [ -n "$MVNW_REPOURL" ]; then
+      jarUrl="$MVNW_REPOURL/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
+    else
+      jarUrl="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
+    fi
+    while IFS="=" read key value; do
+      case "$key" in (wrapperUrl) jarUrl="$value"; break ;;
+      esac
+    done < "$BASE_DIR/.mvn/wrapper/maven-wrapper.properties"
+    if [ "$MVNW_VERBOSE" = true ]; then
+      echo "Downloading from: $jarUrl"
+    fi
+    wrapperJarPath="$BASE_DIR/.mvn/wrapper/maven-wrapper.jar"
+    if $cygwin; then
+      wrapperJarPath=`cygpath --path --windows "$wrapperJarPath"`
+    fi
+
+    if command -v wget > /dev/null; then
+        if [ "$MVNW_VERBOSE" = true ]; then
+          echo "Found wget ... using wget"
+        fi
+        if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
+            wget "$jarUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath"
+        else
+            wget --http-user=$MVNW_USERNAME --http-password=$MVNW_PASSWORD "$jarUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath"
+        fi
+    elif command -v curl > /dev/null; then
+        if [ "$MVNW_VERBOSE" = true ]; then
+          echo "Found curl ... using curl"
+        fi
+        if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
+            curl -o "$wrapperJarPath" "$jarUrl" -f
+        else
+            curl --user $MVNW_USERNAME:$MVNW_PASSWORD -o "$wrapperJarPath" "$jarUrl" -f
+        fi
+
+    else
+        if [ "$MVNW_VERBOSE" = true ]; then
+          echo "Falling back to using Java to download"
+        fi
+        javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java"
+        # For Cygwin, switch paths to Windows format before running javac
+        if $cygwin; then
+          javaClass=`cygpath --path --windows "$javaClass"`
+        fi
+        if [ -e "$javaClass" ]; then
+            if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
+                if [ "$MVNW_VERBOSE" = true ]; then
+                  echo " - Compiling MavenWrapperDownloader.java ..."
+                fi
+                # Compiling the Java class
+                ("$JAVA_HOME/bin/javac" "$javaClass")
+            fi
+            if [ -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
+                # Running the downloader
+                if [ "$MVNW_VERBOSE" = true ]; then
+                  echo " - Running MavenWrapperDownloader.java ..."
+                fi
+                ("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$MAVEN_PROJECTBASEDIR")
+            fi
+        fi
+    fi
+fi
+##########################################################################################
+# End of extension
+##########################################################################################
+
+export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"}
+if [ "$MVNW_VERBOSE" = true ]; then
+  echo $MAVEN_PROJECTBASEDIR
+fi
+MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS"
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin; then
+  [ -n "$M2_HOME" ] &&
+    M2_HOME=`cygpath --path --windows "$M2_HOME"`
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"`
+  [ -n "$CLASSPATH" ] &&
+    CLASSPATH=`cygpath --path --windows "$CLASSPATH"`
+  [ -n "$MAVEN_PROJECTBASEDIR" ] &&
+    MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"`
+fi
+
+# Provide a "standardized" way to retrieve the CLI args that will
+# work with both Windows and non-Windows executions.
+MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $@"
+export MAVEN_CMD_LINE_ARGS
+
+WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
+
+exec "$JAVACMD" \
+  $MAVEN_OPTS \
+  $MAVEN_DEBUG_OPTS \
+  -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \
+  "-Dmaven.home=${M2_HOME}" \
+  "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
+  ${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@"
diff --git a/mvnw.cmd b/mvnw.cmd
new file mode 100644
index 0000000..1d8ab01
--- /dev/null
+++ b/mvnw.cmd
@@ -0,0 +1,188 @@
+@REM ----------------------------------------------------------------------------
+@REM Licensed to the Apache Software Foundation (ASF) under one
+@REM or more contributor license agreements.  See the NOTICE file
+@REM distributed with this work for additional information
+@REM regarding copyright ownership.  The ASF licenses this file
+@REM to you under the Apache License, Version 2.0 (the
+@REM "License"); you may not use this file except in compliance
+@REM with the License.  You may obtain a copy of the License at
+@REM
+@REM    https://www.apache.org/licenses/LICENSE-2.0
+@REM
+@REM Unless required by applicable law or agreed to in writing,
+@REM software distributed under the License is distributed on an
+@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+@REM KIND, either express or implied.  See the License for the
+@REM specific language governing permissions and limitations
+@REM under the License.
+@REM ----------------------------------------------------------------------------
+
+@REM ----------------------------------------------------------------------------
+@REM Maven Start Up Batch script
+@REM
+@REM Required ENV vars:
+@REM JAVA_HOME - location of a JDK home dir
+@REM
+@REM Optional ENV vars
+@REM M2_HOME - location of maven2's installed home dir
+@REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands
+@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a keystroke before ending
+@REM MAVEN_OPTS - parameters passed to the Java VM when running Maven
+@REM     e.g. to debug Maven itself, use
+@REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
+@REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files
+@REM ----------------------------------------------------------------------------
+
+@REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on'
+@echo off
+@REM set title of command window
+title %0
+@REM enable echoing by setting MAVEN_BATCH_ECHO to 'on'
+@if "%MAVEN_BATCH_ECHO%" == "on"  echo %MAVEN_BATCH_ECHO%
+
+@REM set %HOME% to equivalent of $HOME
+if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%")
+
+@REM Execute a user defined script before this one
+if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre
+@REM check for pre script, once with legacy .bat ending and once with .cmd ending
+if exist "%USERPROFILE%\mavenrc_pre.bat" call "%USERPROFILE%\mavenrc_pre.bat" %*
+if exist "%USERPROFILE%\mavenrc_pre.cmd" call "%USERPROFILE%\mavenrc_pre.cmd" %*
+:skipRcPre
+
+@setlocal
+
+set ERROR_CODE=0
+
+@REM To isolate internal variables from possible post scripts, we use another setlocal
+@setlocal
+
+@REM ==== START VALIDATION ====
+if not "%JAVA_HOME%" == "" goto OkJHome
+
+echo.
+echo Error: JAVA_HOME not found in your environment. >&2
+echo Please set the JAVA_HOME variable in your environment to match the >&2
+echo location of your Java installation. >&2
+echo.
+goto error
+
+:OkJHome
+if exist "%JAVA_HOME%\bin\java.exe" goto init
+
+echo.
+echo Error: JAVA_HOME is set to an invalid directory. >&2
+echo JAVA_HOME = "%JAVA_HOME%" >&2
+echo Please set the JAVA_HOME variable in your environment to match the >&2
+echo location of your Java installation. >&2
+echo.
+goto error
+
+@REM ==== END VALIDATION ====
+
+:init
+
+@REM Find the project base dir, i.e. the directory that contains the folder ".mvn".
+@REM Fallback to current working directory if not found.
+
+set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR%
+IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir
+
+set EXEC_DIR=%CD%
+set WDIR=%EXEC_DIR%
+:findBaseDir
+IF EXIST "%WDIR%"\.mvn goto baseDirFound
+cd ..
+IF "%WDIR%"=="%CD%" goto baseDirNotFound
+set WDIR=%CD%
+goto findBaseDir
+
+:baseDirFound
+set MAVEN_PROJECTBASEDIR=%WDIR%
+cd "%EXEC_DIR%"
+goto endDetectBaseDir
+
+:baseDirNotFound
+set MAVEN_PROJECTBASEDIR=%EXEC_DIR%
+cd "%EXEC_DIR%"
+
+:endDetectBaseDir
+
+IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig
+
+@setlocal EnableExtensions EnableDelayedExpansion
+for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a
+@endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS%
+
+:endReadAdditionalConfig
+
+SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe"
+set WRAPPER_JAR="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar"
+set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
+
+set DOWNLOAD_URL="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
+
+FOR /F "usebackq tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO (
+    IF "%%A"=="wrapperUrl" SET DOWNLOAD_URL=%%B
+)
+
+@REM Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
+@REM This allows using the maven wrapper in projects that prohibit checking in binary data.
+if exist %WRAPPER_JAR% (
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Found %WRAPPER_JAR%
+    )
+) else (
+    if not "%MVNW_REPOURL%" == "" (
+        SET DOWNLOAD_URL="%MVNW_REPOURL%/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
+    )
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Couldn't find %WRAPPER_JAR%, downloading it ...
+        echo Downloading from: %DOWNLOAD_URL%
+    )
+
+    powershell -Command "&{"^
+		"$webclient = new-object System.Net.WebClient;"^
+		"if (-not ([string]::IsNullOrEmpty('%MVNW_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_PASSWORD%'))) {"^
+		"$webclient.Credentials = new-object System.Net.NetworkCredential('%MVNW_USERNAME%', '%MVNW_PASSWORD%');"^
+		"}"^
+		"[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $webclient.DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"^
+		"}"
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Finished downloading %WRAPPER_JAR%
+    )
+)
+@REM End of extension
+
+@REM Provide a "standardized" way to retrieve the CLI args that will
+@REM work with both Windows and non-Windows executions.
+set MAVEN_CMD_LINE_ARGS=%*
+
+%MAVEN_JAVA_EXE% ^
+  %JVM_CONFIG_MAVEN_PROPS% ^
+  %MAVEN_OPTS% ^
+  %MAVEN_DEBUG_OPTS% ^
+  -classpath %WRAPPER_JAR% ^
+  "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" ^
+  %WRAPPER_LAUNCHER% %MAVEN_CONFIG% %*
+if ERRORLEVEL 1 goto error
+goto end
+
+:error
+set ERROR_CODE=1
+
+:end
+@endlocal & set ERROR_CODE=%ERROR_CODE%
+
+if not "%MAVEN_SKIP_RC%"=="" goto skipRcPost
+@REM check for post script, once with legacy .bat ending and once with .cmd ending
+if exist "%USERPROFILE%\mavenrc_post.bat" call "%USERPROFILE%\mavenrc_post.bat"
+if exist "%USERPROFILE%\mavenrc_post.cmd" call "%USERPROFILE%\mavenrc_post.cmd"
+:skipRcPost
+
+@REM pause the script if MAVEN_BATCH_PAUSE is set to 'on'
+if "%MAVEN_BATCH_PAUSE%"=="on" pause
+
+if "%MAVEN_TERMINATE_CMD%"=="on" exit %ERROR_CODE%
+
+cmd /C exit /B %ERROR_CODE%
diff --git a/pom.xml b/pom.xml
index 3bd496e..09f1446 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1,24 +1,82 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
 
-    <groupId>fxbinarytree</groupId>
+    <groupId>com.ericcanull</groupId>
     <artifactId>fxbinarytree</artifactId>
     <version>1.0-SNAPSHOT</version>
+    <name>fxbinarytree</name>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <junit.version>5.10.0</junit.version>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.openjfx</groupId>
+            <artifactId>javafx-controls</artifactId>
+            <version>21.0.1</version>
+        </dependency>
+        <dependency>
+            <groupId>org.openjfx</groupId>
+            <artifactId>javafx-graphics</artifactId>
+            <version>21.0.1</version>
+        </dependency>
+        <dependency>
+            <groupId>org.openjfx</groupId>
+            <artifactId>javafx-fxml</artifactId>
+            <version>21.0.1</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-api</artifactId>
+            <version>${junit.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-engine</artifactId>
+            <version>${junit.version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
     <build>
         <plugins>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.11.0</version>
                 <configuration>
-                    <source>1.8</source>
-                    <target>1.8</target>
+                    <source>17</source>
+                    <target>17</target>
                 </configuration>
             </plugin>
+            <plugin>
+                <groupId>org.openjfx</groupId>
+                <artifactId>javafx-maven-plugin</artifactId>
+                <version>0.0.8</version>
+                <executions>
+                    <execution>
+                        <!-- Default configuration for running with: mvn clean javafx:run -->
+                        <id>default-cli</id>
+                        <configuration>
+                            <mainClass>com.ericcanull.fxbinarytree/com.ericcanull.fxbinarytree.app.Main
+                            </mainClass>
+                            <launcher>app</launcher>
+                            <jlinkZipName>app</jlinkZipName>
+                            <jlinkImageName>app</jlinkImageName>
+                            <noManPages>true</noManPages>
+                            <stripDebug>true</stripDebug>
+                            <noHeaderFiles>true</noHeaderFiles>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
         </plugins>
     </build>
-
-
 </project>
\ No newline at end of file
diff --git a/src/main/java/app/Main.java b/src/main/java/com/ericcanull/fxbinarytree/app/Main.java
similarity index 67%
rename from src/main/java/app/Main.java
rename to src/main/java/com/ericcanull/fxbinarytree/app/Main.java
index e0c9496..fea65ed 100644
--- a/src/main/java/app/Main.java
+++ b/src/main/java/com/ericcanull/fxbinarytree/app/Main.java
@@ -1,35 +1,36 @@
-package app;
-
-import javafx.application.Application;
-import javafx.fxml.FXMLLoader;
-import javafx.scene.Parent;
-import javafx.scene.Scene;
-import javafx.stage.Stage;
-
-/**
- * Demonstrates a Binary Search Tree using javafx components.
- * @author Eric Canull
- * @version 1.0
- */
-public class Main extends Application {
-
-	/**
-	 * Builds the Graphic UI.
-	 */
-	@Override
-	public void start(Stage stage) throws Exception {
-		Parent root = FXMLLoader.load(getClass().getResource("/fxml/FXMLGraphicsPanel.fxml"));
-
-		Scene scene = new Scene(root);
-
-		stage.setScene(scene);
-		stage.show();
-	}
-
-	/**
-	 * @param args the command line arguments
-	 */
-	public static void main(String... args) {
-		launch(args);
-	}
-}
+package com.ericcanull.fxbinarytree.app;
+
+import javafx.application.Application;
+import javafx.fxml.FXMLLoader;
+import javafx.scene.Parent;
+import javafx.scene.Scene;
+import javafx.stage.Stage;
+
+import java.util.Objects;
+
+/**
+ * Demonstrates a Binary Search Tree using javafx components.
+ * @author Eric Canull
+ * @version 1.0
+ */
+public class Main extends Application {
+	/**
+	 * Builds the Graphic UI.
+	 */
+	@Override
+	public void start(Stage stage) throws Exception {
+		Parent root = FXMLLoader.load(Objects.requireNonNull(getClass().getResource( "/com/ericcanull/fxbinarytree/fxml/FXMLGraphicsPanel.fxml")));
+
+		Scene scene = new Scene(root);
+
+		stage.setScene(scene);
+		stage.show();
+	}
+
+	/**
+	 * @param args the command line arguments
+	 */
+	public static void main( String[] args ) {
+		launch();
+	}
+}
diff --git a/src/main/java/controller/GraphicsController.java b/src/main/java/com/ericcanull/fxbinarytree/controller/GraphicsController.java
similarity index 95%
rename from src/main/java/controller/GraphicsController.java
rename to src/main/java/com/ericcanull/fxbinarytree/controller/GraphicsController.java
index 2eb1375..5d9ba2a 100644
--- a/src/main/java/controller/GraphicsController.java
+++ b/src/main/java/com/ericcanull/fxbinarytree/controller/GraphicsController.java
@@ -1,129 +1,132 @@
-package controller;
-
-import javafx.event.ActionEvent;
-import javafx.fxml.FXML;
-import javafx.fxml.Initializable;
-import javafx.scene.control.*;
-import javafx.scene.layout.BorderPane;
-
-import java.net.URL;
-import java.util.ResourceBundle;
-
-/**
- * Constructs the GUI components and performs events for displaying and
- * manipulating the binary tree.
- * @author Eric Canull
- * @version 1.0
- */
-public final class GraphicsController implements Initializable {
-
-	// Panels and other GUI components
-	@FXML private BorderPane root_container;
-	@FXML private TextArea traversal_textarea;
-	@FXML private TextField input_field;
-
-	private GraphicsTree graphicsTree;
-
-	/**
-	 * Constructs the GUI components and performs events for displaying and
-	 * changing the data in the binary tree.
-	 */
-	@Override
-	public void initialize(URL location, ResourceBundle resources) {
-
-		// The center panel for drawing the tree
-		graphicsTree = new GraphicsTree();
-		// Add the panels onto the border pane
-		root_container.setCenter(graphicsTree);
-
-		// Bind canvas size to stack pane size.
-		graphicsTree.widthProperty().bind(root_container.widthProperty());
-		graphicsTree.heightProperty().bind(root_container.heightProperty().subtract(50));
-	}
-	
-	/**
-	 *  Performs the action when the search button is clicked.
-	 */
-	@FXML private void searchOnAction(ActionEvent event) {
-		try {
-			graphicsTree.search(Integer.parseInt(input_field.getText().trim()));
-		} catch (NumberFormatException nfe) {
-			Alert alert = new Alert(Alert.AlertType.ERROR,
-					"Error searching for value. The input field can only accept numbers.", 	ButtonType.OK);
-
-			alert.showAndWait()
-					.filter(response -> response == ButtonType.OK)
-					.ifPresent(response -> alert.close());
-
-		}
-	}
-
-	/**
-	 * Performs the action when the delete button is clicked.
-	 */
-	@FXML private void deleteOnAction(ActionEvent event) {
-		try {
-			graphicsTree.delete(Integer.parseInt(input_field.getText().trim()));
-		} catch (NumberFormatException nfe) {
-			Alert alert = new Alert(Alert.AlertType.ERROR, "Error deleting value. The input field can only accept numbers.",
-					ButtonType.OK);
-			alert.showAndWait()
-					.filter(response -> response == ButtonType.OK)
-					.ifPresent(response -> alert.close());
-		}
-	}
-
-	private void clearTree() {
-		graphicsTree.makeEmpty();
-		traversal_textarea.setText("");
-	}
-	/**
-	 * Performs the action when the clear button is clicked.
-	 */
-	@FXML private void clearOnAction(ActionEvent event) {
-		Alert alert = new Alert(Alert.AlertType.CONFIRMATION, "Do you want to empty the tree?", ButtonType.OK);
-		alert.showAndWait()
-				.filter(response -> response == ButtonType.OK)
-				.ifPresent(response -> clearTree());
-
-	}
-
-	/**
-	 *  Performs the action when the insert button is clicked.
-	 */
-	@FXML private void insertOnAction(ActionEvent event) {
-		try {
-			graphicsTree.insert(Integer.parseInt(input_field.getText().trim()));
-		} catch (NumberFormatException nfe) {
-			Alert alert = new Alert(Alert.AlertType.ERROR, "Error inserting value. The input field can only accept numbers.",
-					ButtonType.OK);
-			alert.showAndWait()
-					.filter(response -> response == ButtonType.OK)
-					.ifPresent(response -> alert.close());
-		}
-	}
-
-	/**
-	 * Performs the action when the first traversal button is clicked.
-	 */
-	@FXML private void inorderOnAction(ActionEvent event) {
-		graphicsTree.setInorder();
-		traversal_textarea.setText(graphicsTree.printTree());
-	}
-
-	/**
-	 *  Performs the action when the second traversal button is clicked.
-	 */
-	@FXML private void preorderOnAction(ActionEvent event) {
-		graphicsTree.setPreorder();
-		traversal_textarea.setText(graphicsTree.printTree());
-	}
-
-	/**
-	 *  Performs the action when the third traversal button is clicked.
-	 */
-	@FXML private void postorderOnAction(ActionEvent event) {
-		graphicsTree.setPostorder();
-		traversal_textarea.setText(graphicsTree.printTree());
-	}
-}
+package com.ericcanull.fxbinarytree.controller;
+
+import javafx.event.ActionEvent;
+import javafx.fxml.FXML;
+import javafx.fxml.Initializable;
+import javafx.scene.control.Alert;
+import javafx.scene.control.ButtonType;
+import javafx.scene.control.TextArea;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.BorderPane;
+
+import java.net.URL;
+import java.util.ResourceBundle;
+
+/**
+ * Constructs the GUI components and performs events for displaying and
+ * manipulating the binary tree.
+ * @author Eric Canull
+ * @version 1.0
+ */
+public final class GraphicsController implements Initializable {
+
+	// Panels and other GUI components
+	@FXML private BorderPane root_container;
+	@FXML private TextArea traversal_textarea;
+	@FXML private TextField input_field;
+
+	private GraphicsTree graphicsTree;
+
+	/**
+	 * Constructs the GUI components and performs events for displaying and
+	 * changing the data in the binary tree.
+	 */
+	@Override
+	public void initialize(URL location, ResourceBundle resources) {
+
+		// The center panel for drawing the tree
+		graphicsTree = new GraphicsTree();
+		// Add the panels onto the border pane
+		root_container.setCenter(graphicsTree);
+
+		// Bind canvas size to stack pane size.
+		graphicsTree.widthProperty().bind(root_container.widthProperty());
+		graphicsTree.heightProperty().bind(root_container.heightProperty().subtract(50));
+	}
+	
+	/**
+	 *  Performs the action when the search button is clicked.
+	 */
+	@FXML private void searchOnAction(ActionEvent event) {
+		try {
+			graphicsTree.search(Integer.parseInt(input_field.getText().trim()));
+		} catch (NumberFormatException nfe) {
+			Alert alert = new Alert(Alert.AlertType.ERROR,
+					"Error searching for value. The input field can only accept numbers.", 	ButtonType.OK);
+
+			alert.showAndWait()
+					.filter(response -> response == ButtonType.OK)
+					.ifPresent(response -> alert.close());
+
+		}
+	}
+
+	/**
+	 * Performs the action when the delete button is clicked.
+	 */
+	@FXML private void deleteOnAction(ActionEvent event) {
+		try {
+			graphicsTree.delete(Integer.parseInt(input_field.getText().trim()));
+		} catch (NumberFormatException nfe) {
+			Alert alert = new Alert(Alert.AlertType.ERROR, "Error deleting value. The input field can only accept numbers.",
+					ButtonType.OK);
+			alert.showAndWait()
+					.filter(response -> response == ButtonType.OK)
+					.ifPresent(response -> alert.close());
+		}
+	}
+
+	private void clearTree() {
+		graphicsTree.makeEmpty();
+		traversal_textarea.setText("");
+	}
+	/**
+	 * Performs the action when the clear button is clicked.
+	 */
+	@FXML private void clearOnAction(ActionEvent event) {
+		Alert alert = new Alert(Alert.AlertType.CONFIRMATION, "Do you want to empty the tree?", ButtonType.OK);
+		alert.showAndWait()
+				.filter(response -> response == ButtonType.OK)
+				.ifPresent(response -> clearTree());
+
+	}
+
+	/**
+	 *  Performs the action when the insert button is clicked.
+	 */
+	@FXML private void insertOnAction(ActionEvent event) {
+		try {
+			graphicsTree.insert(Integer.parseInt(input_field.getText().trim()));
+		} catch (NumberFormatException nfe) {
+			Alert alert = new Alert(Alert.AlertType.ERROR, "Error inserting value. The input field can only accept numbers.",
+					ButtonType.OK);
+			alert.showAndWait()
+					.filter(response -> response == ButtonType.OK)
+					.ifPresent(response -> alert.close());
+		}
+	}
+
+	/**
+	 * Performs the action when the first traversal button is clicked.
+	 */
+	@FXML private void inorderOnAction(ActionEvent event) {
+		graphicsTree.setInorder();
+		traversal_textarea.setText(graphicsTree.printTree());
+	}
+
+	/**
+	 *  Performs the action when the second traversal button is clicked.
+	 */
+	@FXML private void preorderOnAction(ActionEvent event) {
+		graphicsTree.setPreorder();
+		traversal_textarea.setText(graphicsTree.printTree());
+	}
+
+	/**
+	 *  Performs the action when the third traversal button is clicked.
+	 */
+	@FXML private void postorderOnAction(ActionEvent event) {
+		graphicsTree.setPostorder();
+		traversal_textarea.setText(graphicsTree.printTree());
+	}
+}
diff --git a/src/main/java/controller/GraphicsTree.java b/src/main/java/com/ericcanull/fxbinarytree/controller/GraphicsTree.java
similarity index 96%
rename from src/main/java/controller/GraphicsTree.java
rename to src/main/java/com/ericcanull/fxbinarytree/controller/GraphicsTree.java
index 5ac9235..f801321 100644
--- a/src/main/java/controller/GraphicsTree.java
+++ b/src/main/java/com/ericcanull/fxbinarytree/controller/GraphicsTree.java
@@ -1,352 +1,352 @@
-package controller;
-
-import javafx.geometry.Point2D;
-import javafx.scene.canvas.Canvas;
-import javafx.scene.canvas.GraphicsContext;
-import javafx.scene.control.Alert;
-import javafx.scene.control.ButtonType;
-
-import tree.*;
-import shape.*;
-import java.util.Objects;
-
-/**
- * Draws the tree and updates the graphics to display according to the
- * searching, inserting, deleting, and traversal options.
- * @author Eric Canull
- * @version 1.0
- */
-@SuppressWarnings("serial")
-public final class GraphicsTree extends Canvas {
-
-	/**
-	 * The initial input values for the tree.
-	 */
-	private static final Integer[] NUMBERS_ARRAY = { 50, 25, 30, 12, 10, 75, 70, 80, 110 };
-
-	private BinarySearchTree tree;  	// The BST
-	private TreeIterator treeIterator;  // The BST Iterator
-	private Circle insertCircle;        // Insert circle 
-	private int maxTreeHeight; 			// Max tree height;
-
-	/**
-	 * Draws the tree and updates the graphics to display according to the
-	 * searching, inserting, deleting, and traversal options.
-	 */
-	public GraphicsTree() {
-
-		widthProperty().addListener(evt -> drawTree());
-		heightProperty().addListener(evt -> drawTree());
-
-		createTree();
-	}
-	
-	/**
-     * Changes the tree rendered by this panel.
-     */
-    public void setTree(BinarySearchTree root) {  tree = root; }
-
-	/**
-	 * Creates the initial binary search tree with the default values
-	 * in the numbers array.
-	 */
-	public void createTree() {
-
-		tree = new BinarySearchTree(); // Create an empty tree
-		setMaxTreeHeight(7); 		   // Set the default max tree height 
-
-		for (Integer number : NUMBERS_ARRAY) {
-			Circle circle = new Circle(number);
-			tree.insertItem(circle);
-		}
-
-		drawTree();
-	}
-
-	/**
-	 * Set the max tree height.
-	 * @param size a <code>Integer</code> number for the tree max size
-	 * @return An <code>Integer</code> max tree size
-	 */
-	private int setMaxTreeHeight(int size) {
-		this.maxTreeHeight = size;
-		return size;
-	}
-
-	/**
-	 * Searches for an search key number in the tree. If the number is found the tree will
-	 * be repainted to show the path. If the number cannot be found a notification
-	 * message will be displayed.
-	 * 
-	 * @param searchKey a <code>Integer</code> number for finding a tree.TreeNode
-	 */
-	public void search(Integer searchKey) {
-
-		// Try to search for a number.
-		try { 
-			tree.retrieveItem(searchKey); // number was found
-		} catch (NullPointerException e) { // Not found
-			//JOptionPane.showMessageDialog(null, searchKey + " was not found.");
-			tree.setResetColor(tree.root); // Reset color
-		}
-
-		drawTree();
-	}
-
-	/**
-	 * Prints the tree traversal order to the upper left-hand
-	 * side of the screen.
-	 * @return outputString
-	 */
-	public String printTree() {
-
-		// Traversal text output string
-		StringBuilder outputString = new StringBuilder();
-
-		// Add the next tree iterator to the output
-		while (treeIterator.hasNext()) {
-			outputString.append(treeIterator.next()).append(" ");
-		}
-
-		return outputString.toString(); // return the output string
-	}
-
-	/**
-	 * Retrieves the pre-order traversal option.
-	 */
-	public void setPreorder() {
-		treeIterator = new TreeIterator(tree);
-		treeIterator.setPreorder();
-	}
-
-	/**
-	 * Retrieves the in-order traversal option.
-	 */
-	public void setInorder() {
-		treeIterator = new TreeIterator(tree);
-		treeIterator.setInorder();
-	}
-
-	/**
-	 * Retrieves the post-order traversal option.
-	 */
-	public void setPostorder() {
-		treeIterator = new TreeIterator(tree);
-		treeIterator.setPostorder();
-	}
-
-	/**
-	 * Inserts a circle into the tree. If the tree height reaches the max height
-	 * displays an notification request to change the max height.
-	 * @param searchKey a <code>integer</code> number to insert in the tree
-	 */
-	public void insert(Integer searchKey) {
-		insertCircle = new Circle(searchKey);
-		tree.insertItem(insertCircle);
-		int heightOption = 2;
-		drawTree();
-
-
-	//	 If the height of the tree equals max height
-		if (tree.getHeight(tree.getRoot()) == maxTreeHeight) {
-			// Display option message
-
-			Alert alert = new Alert(Alert.AlertType.WARNING, "Reached max height. Would you like to increase the height?",
-					ButtonType.YES);
-			alert.showAndWait()
-					.filter(response -> response == ButtonType.YES)
-					.ifPresent(response -> alert.close());
-		}
-//			heightOption = JOptionPane.showConfirmDialog(null,
-//					"Reached max height. Would you like to increase the height?", " Height Adjust",
-//					JOptionPane.YES_NO_OPTION);
-
-			// Option 'Yes'selected: Change the height
-			if (heightOption == 0) {
-//				String height = JOptionPane.showInputDialog("Enter a new height between 7 and 10.");
-				heightOption = 7;
-				try {
-					int newHeight = heightOption;
-//					int newHeight = Integer.parseInt(heightOption);
-					// Confirm height input is within acceptable range
-					if (newHeight > tree.getHeight(tree.getRoot()) && newHeight <= 10) {
-						setMaxTreeHeight(newHeight);
-					} else {
-						throw new TreeException("tree.TreeException on change height.");
-					}
-
-					// Error occurred: Reverse changes and exit
-				} catch (NumberFormatException | TreeException e) {
-					Alert alert = new Alert(Alert.AlertType.WARNING, "Input error. The height was not changed.",
-							ButtonType.OK);
-					alert.showAndWait()
-							.filter(response -> response == ButtonType.OK)
-							.ifPresent(response -> alert.close());
-
-					tree.deleteItem(insertCircle.getSearchKey()); // Remove the inserted circle
-					tree.setResetColor(tree.root); 				  // Reset highlight flag for all nodes
-				}
-
-				// Option 'No' selected: Reverse changes and exit
-			} else if (heightOption == 1) {
-				Alert alert = new Alert(Alert.AlertType.CONFIRMATION, "The number was not inserted.",
-						ButtonType.OK);
-				alert.showAndWait()
-						.filter(response -> response == ButtonType.OK)
-						.ifPresent(response -> alert.close());
-
-
-				tree.deleteItem(insertCircle.getSearchKey()); // Remove the inserted circle
-				tree.setResetColor(tree.root);                // Reset highlight flag for all nodes
-
-
-
-		} else {
-
-		}
-	}
-
-	/**
-	 * Deletes a number from the tree. If the number is not able to be deleted display
-	 * a notification message.
-	 * @param searchKey <code>integer</code> number to delete from the tree
-	 */
-	public void delete(Integer searchKey) {
-		try {
-			tree.deleteItem(searchKey);
-		} catch (TreeException e) {
-			//JOptionPane.showMessageDialog(null, "Unable to delete " + searchKey);
-		}
-
-		drawTree();
-	}
-
-	/**
-	 * Deletes all the nodes in the tree.
-	 */
-	public void makeEmpty() {
-		tree.makeEmpty();
-		maxTreeHeight = 6;
-        getGraphicsContext2D().clearRect(0, 0, getWidth(), getHeight());
-	}
-
-	/**
-	 * Draws the binary tree on the component.
-	 */
-	protected void drawTree() {
-		double width = getWidth();
-		double height = getHeight();
-
-		GraphicsContext gc = getGraphicsContext2D();
-		gc.clearRect(0, 0, width, height);
-
-		// If the tree is not empty; draw the lines and circles
-		if (tree.root != null) {
-		int treeHeight = tree.getHeight(tree.root);
-			
-			// Get the tree height
-			drawTree(gc, tree.getRoot(), 0, this.getWidth(), 0, this.getHeight() / treeHeight);
-			drawCircles(gc, tree.getRoot(), 0, this.getWidth(), 0, this.getHeight() / treeHeight);
-		}
-	}
-	
-	/**
-	 * Draws the lines recursively until there are no more tree nodes.
-	 * @param gc graphics2D class for extending drawing tools
-	 * @param treeNode a tree with <code>integer</code> index numbers
-	 * @param xMin the minimum width to draw on the component
-	 * @param xMax the minimum width to draw on the component
-	 * @param yMin the maximum width to draw on the component
-	 * @param yMax the maximum height to draw on the component
-	 */
-	protected void drawTree(GraphicsContext gc, TreeNode treeNode, double xMin, double xMax, double yMin, double yMax) {
-
-		Point2D linePoint1; 	// Point_1
-		Point2D linePoint2;   // Point_2
-		Line newLine = new Line();  // Blank line
-		
-		// If left node is not null then draw a line to it
-		if (treeNode.leftCircle != null) {
-			newLine.setHighlighter(false);
-			
-			if (treeNode.leftCircle.highlightFlag) {
-				newLine.setHighlighter(true);
-			}
-			
-			// Determine the start and end points of the line
-			linePoint1 = new Point2D(((xMin + xMax) / 2), yMin + yMax / 2);
-			linePoint2 = new Point2D(((xMin + (xMin + xMax) / 2) / 2), yMin + yMax + yMax / 2);
-			newLine.setPoint(linePoint1, linePoint2);// Set the points
-			newLine.draw(gc);// Draw the line
-			
-			// Recurse left circle nodes
-			drawTree(gc, treeNode.leftCircle, xMin, (xMin + xMax) / 2, yMin + yMax, yMax);
-		}
-
-		// If right node is not null then draw a line to it
-		if (treeNode.rightCircle != null) {
-			newLine.setHighlighter(false);
-			
-			// Color the line if the tree circle is flagged for color 
-			if (treeNode.rightCircle.highlightFlag) {
-				newLine.setHighlighter(true);
-			}
-	
-			// Determine the start and end points of the line
-			linePoint1 = new Point2D((xMin + xMax) / 2, yMin + yMax / 2);
-			linePoint2 = new Point2D((xMax + (xMin + xMax) / 2) / 2, yMin + yMax + yMax / 2);
-			newLine.setPoint(linePoint1, linePoint2);
-			newLine.draw(gc);// Draw the line
-		
-			// Recurse right circle nodes
-			drawTree(gc, treeNode.rightCircle, (xMin + xMax) / 2, xMax, yMin + yMax, yMax);
-		}
-	}
-
-	/**
-	 * Draws circles for every root, parent and child tree nodes.
-	 * @param gc graphics2D class for expanding the drawing tools
-	 * @param treeNode a tree with <code>Integer</code> index numbers
-	 * @param xMin the minimum width to draw on the component
-	 * @param xMax the maximum width to draw on the component
-	 * @param yMin the minimum height to draw on the component
-	 * @param yMax the maximum height to draw on the component
-	 */
-	public void drawCircles(GraphicsContext gc, TreeNode treeNode, double xMin, double xMax, double yMin, double yMax) {
-
-		// Create a new point
-		Point2D point = new Point2D((xMin + xMax) / 2, yMin + yMax / 2);
-
-		// treeNodes are flagged for highlight: Search and insertion nodes
-		if (treeNode.highlightFlag || Objects.equals(treeNode.rootCircle, insertCircle)) {
-			insertCircle = null;		    // Reset insert circle
-			treeNode.highlightFlag = false; // Reset highlight flag
-			treeNode.rootCircle.setHighlighter(true); // Highlight turned on
-			treeNode.rootCircle.setPoint(point); 	
-
-			// default no highlight
-		} else {
-			treeNode.rootCircle.setHighlighter(false); // Highlight turned off
-			treeNode.rootCircle.setPoint(point);
-		}
-
-		// Draw the circle
-		treeNode.rootCircle.draw(gc);
-
-		// Recurse left circles
-		if (treeNode.leftCircle != null) {
-			drawCircles(gc, treeNode.leftCircle, xMin, (xMin + xMax) / 2, yMin + yMax,	yMax);
-		}
-
-		// Recurse right circles
-		if (treeNode.rightCircle != null) {
-			drawCircles(gc, treeNode.rightCircle, (xMin + xMax) / 2, xMax, yMin + yMax, yMax);
-		}
-	}
-
-	public void clearCanvas() {
-		getGraphicsContext2D().clearRect(0, 0, this.getWidth(), this.getHeight());
-	}
-}
-	
-
+package com.ericcanull.fxbinarytree.controller;
+
+import javafx.geometry.Point2D;
+import javafx.scene.canvas.Canvas;
+import javafx.scene.canvas.GraphicsContext;
+import javafx.scene.control.Alert;
+import javafx.scene.control.ButtonType;
+import com.ericcanull.fxbinarytree.shape.*;
+import com.ericcanull.fxbinarytree.tree.*;
+
+import java.util.Objects;
+
+/**
+ * Draws the tree and updates the graphics to display according to the
+ * searching, inserting, deleting, and traversal options.
+ * @author Eric Canull
+ * @version 1.0
+ */
+@SuppressWarnings("serial")
+public final class GraphicsTree extends Canvas {
+
+	/**
+	 * The initial input values for the tree.
+	 */
+	private static final Integer[] NUMBERS_ARRAY = { 50, 25, 30, 12, 10, 75, 70, 80, 110 };
+
+	private BinarySearchTree tree;  	// The BST
+	private TreeIterator treeIterator;  // The BST Iterator
+	private Circle insertCircle;        // Insert circle 
+	private int maxTreeHeight; 			// Max tree height;
+
+	/**
+	 * Draws the tree and updates the graphics to display according to the
+	 * searching, inserting, deleting, and traversal options.
+	 */
+	public GraphicsTree() {
+
+		widthProperty().addListener(evt -> drawTree());
+		heightProperty().addListener(evt -> drawTree());
+
+		createTree();
+	}
+	
+	/**
+     * Changes the tree rendered by this panel.
+     */
+    public void setTree(BinarySearchTree root) {  tree = root; }
+
+	/**
+	 * Creates the initial binary search tree with the default values
+	 * in the numbers array.
+	 */
+	public void createTree() {
+
+		tree = new BinarySearchTree(); // Create an empty tree
+		setMaxTreeHeight(7); 		   // Set the default max tree height 
+
+		for (Integer number : NUMBERS_ARRAY) {
+			Circle circle = new Circle(number);
+			tree.insertItem(circle);
+		}
+
+		drawTree();
+	}
+
+	/**
+	 * Set the max tree height.
+	 * @param size a <code>Integer</code> number for the tree max size
+	 * @return An <code>Integer</code> max tree size
+	 */
+	private int setMaxTreeHeight(int size) {
+		this.maxTreeHeight = size;
+		return size;
+	}
+
+	/**
+	 * Searches for an search key number in the tree. If the number is found the tree will
+	 * be repainted to show the path. If the number cannot be found a notification
+	 * message will be displayed.
+	 * 
+	 * @param searchKey a <code>Integer</code> number for finding a tree.TreeNode
+	 */
+	public void search(Integer searchKey) {
+
+		// Try to search for a number.
+		try { 
+			tree.retrieveItem(searchKey); // number was found
+		} catch (NullPointerException e) { // Not found
+			//JOptionPane.showMessageDialog(null, searchKey + " was not found.");
+			tree.setResetColor(tree.root); // Reset color
+		}
+
+		drawTree();
+	}
+
+	/**
+	 * Prints the tree traversal order to the upper left-hand
+	 * side of the screen.
+	 * @return outputString
+	 */
+	public String printTree() {
+
+		// Traversal text output string
+		StringBuilder outputString = new StringBuilder();
+
+		// Add the next tree iterator to the output
+		while (treeIterator.hasNext()) {
+			outputString.append(treeIterator.next()).append(" ");
+		}
+
+		return outputString.toString(); // return the output string
+	}
+
+	/**
+	 * Retrieves the pre-order traversal option.
+	 */
+	public void setPreorder() {
+		treeIterator = new TreeIterator(tree);
+		treeIterator.setPreorder();
+	}
+
+	/**
+	 * Retrieves the in-order traversal option.
+	 */
+	public void setInorder() {
+		treeIterator = new TreeIterator(tree);
+		treeIterator.setInorder();
+	}
+
+	/**
+	 * Retrieves the post-order traversal option.
+	 */
+	public void setPostorder() {
+		treeIterator = new TreeIterator(tree);
+		treeIterator.setPostorder();
+	}
+
+	/**
+	 * Inserts a circle into the tree. If the tree height reaches the max height
+	 * displays an notification request to change the max height.
+	 * @param searchKey a <code>integer</code> number to insert in the tree
+	 */
+	public void insert(Integer searchKey) {
+		insertCircle = new Circle(searchKey);
+		tree.insertItem(insertCircle);
+		int heightOption = 2;
+		drawTree();
+
+
+	//	 If the height of the tree equals max height
+		if (tree.getHeight(tree.getRoot()) == maxTreeHeight) {
+			// Display option message
+
+			Alert alert = new Alert(Alert.AlertType.WARNING, "Reached max height. Would you like to increase the height?",
+					ButtonType.YES);
+			alert.showAndWait()
+					.filter(response -> response == ButtonType.YES)
+					.ifPresent(response -> alert.close());
+		}
+//			heightOption = JOptionPane.showConfirmDialog(null,
+//					"Reached max height. Would you like to increase the height?", " Height Adjust",
+//					JOptionPane.YES_NO_OPTION);
+
+			// Option 'Yes'selected: Change the height
+			if (heightOption == 0) {
+//				String height = JOptionPane.showInputDialog("Enter a new height between 7 and 10.");
+				heightOption = 7;
+				try {
+					int newHeight = heightOption;
+//					int newHeight = Integer.parseInt(heightOption);
+					// Confirm height input is within acceptable range
+					if (newHeight > tree.getHeight(tree.getRoot()) && newHeight <= 10) {
+						setMaxTreeHeight(newHeight);
+					} else {
+						throw new TreeException("tree.TreeException on change height.");
+					}
+
+					// Error occurred: Reverse changes and exit
+				} catch (NumberFormatException | TreeException e) {
+					Alert alert = new Alert(Alert.AlertType.WARNING, "Input error. The height was not changed.",
+							ButtonType.OK);
+					alert.showAndWait()
+							.filter(response -> response == ButtonType.OK)
+							.ifPresent(response -> alert.close());
+
+					tree.deleteItem(insertCircle.getSearchKey()); // Remove the inserted circle
+					tree.setResetColor(tree.root); 				  // Reset highlight flag for all nodes
+				}
+
+				// Option 'No' selected: Reverse changes and exit
+			} else if (heightOption == 1) {
+				Alert alert = new Alert(Alert.AlertType.CONFIRMATION, "The number was not inserted.",
+						ButtonType.OK);
+				alert.showAndWait()
+						.filter(response -> response == ButtonType.OK)
+						.ifPresent(response -> alert.close());
+
+
+				tree.deleteItem(insertCircle.getSearchKey()); // Remove the inserted circle
+				tree.setResetColor(tree.root);                // Reset highlight flag for all nodes
+
+
+
+		} else {
+
+		}
+	}
+
+	/**
+	 * Deletes a number from the tree. If the number is not able to be deleted display
+	 * a notification message.
+	 * @param searchKey <code>integer</code> number to delete from the tree
+	 */
+	public void delete(Integer searchKey) {
+		try {
+			tree.deleteItem(searchKey);
+		} catch (TreeException e) {
+			//JOptionPane.showMessageDialog(null, "Unable to delete " + searchKey);
+		}
+
+		drawTree();
+	}
+
+	/**
+	 * Deletes all the nodes in the tree.
+	 */
+	public void makeEmpty() {
+		tree.makeEmpty();
+		maxTreeHeight = 6;
+        getGraphicsContext2D().clearRect(0, 0, getWidth(), getHeight());
+	}
+
+	/**
+	 * Draws the binary tree on the component.
+	 */
+	protected void drawTree() {
+		double width = getWidth();
+		double height = getHeight();
+
+		GraphicsContext gc = getGraphicsContext2D();
+		gc.clearRect(0, 0, width, height);
+
+		// If the tree is not empty; draw the lines and circles
+		if (tree.root != null) {
+		int treeHeight = tree.getHeight(tree.root);
+			
+			// Get the tree height
+			drawTree(gc, tree.getRoot(), 0, this.getWidth(), 0, this.getHeight() / treeHeight);
+			drawCircles(gc, tree.getRoot(), 0, this.getWidth(), 0, this.getHeight() / treeHeight);
+		}
+	}
+	
+	/**
+	 * Draws the lines recursively until there are no more tree nodes.
+	 * @param gc graphics2D class for extending drawing tools
+	 * @param treeNode a tree with <code>integer</code> index numbers
+	 * @param xMin the minimum width to draw on the component
+	 * @param xMax the minimum width to draw on the component
+	 * @param yMin the maximum width to draw on the component
+	 * @param yMax the maximum height to draw on the component
+	 */
+	protected void drawTree(GraphicsContext gc, TreeNode treeNode, double xMin, double xMax, double yMin, double yMax) {
+
+		Point2D linePoint1; 	// Point_1
+		Point2D linePoint2;   // Point_2
+		Line newLine = new Line();  // Blank line
+		
+		// If left node is not null then draw a line to it
+		if (treeNode.leftCircle != null) {
+			newLine.setHighlighter(false);
+			
+			if (treeNode.leftCircle.highlightFlag) {
+				newLine.setHighlighter(true);
+			}
+			
+			// Determine the start and end points of the line
+			linePoint1 = new Point2D(((xMin + xMax) / 2), yMin + yMax / 2);
+			linePoint2 = new Point2D(((xMin + (xMin + xMax) / 2) / 2), yMin + yMax + yMax / 2);
+			newLine.setPoint(linePoint1, linePoint2);// Set the points
+			newLine.draw(gc);// Draw the line
+			
+			// Recurse left circle nodes
+			drawTree(gc, treeNode.leftCircle, xMin, (xMin + xMax) / 2, yMin + yMax, yMax);
+		}
+
+		// If right node is not null then draw a line to it
+		if (treeNode.rightCircle != null) {
+			newLine.setHighlighter(false);
+			
+			// Color the line if the tree circle is flagged for color 
+			if (treeNode.rightCircle.highlightFlag) {
+				newLine.setHighlighter(true);
+			}
+	
+			// Determine the start and end points of the line
+			linePoint1 = new Point2D((xMin + xMax) / 2, yMin + yMax / 2);
+			linePoint2 = new Point2D((xMax + (xMin + xMax) / 2) / 2, yMin + yMax + yMax / 2);
+			newLine.setPoint(linePoint1, linePoint2);
+			newLine.draw(gc);// Draw the line
+		
+			// Recurse right circle nodes
+			drawTree(gc, treeNode.rightCircle, (xMin + xMax) / 2, xMax, yMin + yMax, yMax);
+		}
+	}
+
+	/**
+	 * Draws circles for every root, parent and child tree nodes.
+	 * @param gc graphics2D class for expanding the drawing tools
+	 * @param treeNode a tree with <code>Integer</code> index numbers
+	 * @param xMin the minimum width to draw on the component
+	 * @param xMax the maximum width to draw on the component
+	 * @param yMin the minimum height to draw on the component
+	 * @param yMax the maximum height to draw on the component
+	 */
+	public void drawCircles(GraphicsContext gc, TreeNode treeNode, double xMin, double xMax, double yMin, double yMax) {
+
+		// Create a new point
+		Point2D point = new Point2D((xMin + xMax) / 2, yMin + yMax / 2);
+
+		// treeNodes are flagged for highlight: Search and insertion nodes
+		if (treeNode.highlightFlag || Objects.equals(treeNode.rootCircle, insertCircle)) {
+			insertCircle = null;		    // Reset insert circle
+			treeNode.highlightFlag = false; // Reset highlight flag
+			treeNode.rootCircle.setHighlighter(true); // Highlight turned on
+			treeNode.rootCircle.setPoint(point); 	
+
+			// default no highlight
+		} else {
+			treeNode.rootCircle.setHighlighter(false); // Highlight turned off
+			treeNode.rootCircle.setPoint(point);
+		}
+
+		// Draw the circle
+		treeNode.rootCircle.draw(gc);
+
+		// Recurse left circles
+		if (treeNode.leftCircle != null) {
+			drawCircles(gc, treeNode.leftCircle, xMin, (xMin + xMax) / 2, yMin + yMax,	yMax);
+		}
+
+		// Recurse right circles
+		if (treeNode.rightCircle != null) {
+			drawCircles(gc, treeNode.rightCircle, (xMin + xMax) / 2, xMax, yMin + yMax, yMax);
+		}
+	}
+
+	public void clearCanvas() {
+		getGraphicsContext2D().clearRect(0, 0, this.getWidth(), this.getHeight());
+	}
+}
+	
+
diff --git a/src/main/java/shape/Circle.java b/src/main/java/com/ericcanull/fxbinarytree/shape/Circle.java
similarity index 89%
rename from src/main/java/shape/Circle.java
rename to src/main/java/com/ericcanull/fxbinarytree/shape/Circle.java
index ad7d941..1ebcb08 100644
--- a/src/main/java/shape/Circle.java
+++ b/src/main/java/com/ericcanull/fxbinarytree/shape/Circle.java
@@ -1,202 +1,205 @@
-package shape;
-
-import com.sun.javafx.tk.FontMetrics;
-import com.sun.javafx.tk.Toolkit;
-import javafx.geometry.Point2D;
-import javafx.scene.canvas.GraphicsContext;
-import javafx.scene.paint.Color;
-import javafx.scene.text.Font;
-import javafx.scene.text.FontWeight;
-
-
-/**
- * Creates a circle object with methods for controlling it's point locale,
- * background color, border color, font color, and number id.
- * @author Eric Canull
- * @version 1.0
- */
-public final class Circle {
-	
-	/**
-	 * The font for the numbers inside the circle.
-	 */
-	final Font font =  Font.font("Cooper Black", FontWeight.BOLD, 16);
-	final FontMetrics fm = Toolkit.getToolkit().getFontLoader().getFontMetrics(font);
-
-	/**
-	 * The radius of the circle.
-	 */
-	public static final int RADIUS = 26;
-	
-	/**
-	 * The search key for searching and deleting circles.
-	 */
-	private final Integer searchKey;
-	
-	// The circle attributes
-	private Point2D point;
-	private Color backgroundColor;
-	private Color borderColor;
-	private Color fontColor;
-
-	/**
-	 * Creates a circle object with methods for controlling it's point locale,
-	 * background color, border color, font color, search key.
-	 * @param searchKey a <code>Integer</code> search key for searching and deleting within an index.
-	 */
-	public Circle(Integer searchKey) {
-		this.searchKey = searchKey;
-		this.backgroundColor = Color.web("#FCFCFC");
-	}
-	
-	/**
-	 * 
-	 * @param searchKey a integer id number for searching and deleting from an index.
-	 * @param point a Cartesian coordinate using x and y float numbers.
-	 */
-	public Circle(Integer searchKey, Point2D point) {
-		this.searchKey = searchKey;
-		this.point = point;
-		this.backgroundColor = Color.rgb(49, 116, 222);
-		this.setBorderColor(Color.rgb(99, 99, 99));
-		this.fontColor = Color.web("#FCFCFC");
-		
-	}
-
-	/**
-	 * Draws the circle at a new position
-	 * @param gc The graphics object to use for drawing to a component
-	 */
-	public void draw(GraphicsContext gc) {
-		//(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
-		gc.setLineWidth(3); // Sets the width of the lines
-		
-		// Create a circle 
-		gc.setFill(backgroundColor);
-		gc.fillOval(point.getX() - RADIUS, point.getY() - RADIUS, 2 * RADIUS, 2 * RADIUS);
-		
-		// Outline the circle border
-		gc.setStroke(borderColor);
-		gc.strokeOval(point.getX() - RADIUS, point.getY() - RADIUS, 2 * RADIUS, 2 * RADIUS);
-
-		// Draw the id number inside the circle
-		gc.setFont(font);
-		gc.setFill(getFontColor());
-		gc.fillText(getKey(),
-				 point.getX() - (fm.computeStringWidth(getKey()) / 2),
-				 point.getY() + (fm.getAscent() / 4));
-	}
-
-	private String getKey() {
-		return Integer.toString(getSearchKey());
-	}
-	/**
-	 * Get the search key number.
-	 * @return A integer of the circle index value. 
-	 */
-	public Integer getSearchKey() {
-		return this.searchKey;
-	}
-	
-	/**
-	 * Gets the border color.
-	 * @return A color for the circle border
-	 */
-	public Color getBorderColor() {
-		return borderColor;
-	}
-	
-	/**
-	 * Sets the border color.
-	 * @param borderColor
-	 */
-	private void setBorderColor(Color borderColor) {
-		this.borderColor = borderColor;
-	}
-	
-	/**
-	 * Gets the point coordinates.
-	 * @return 
-	 */
-	public Point2D getPoint() {
-		return point;
-	}
-	
-	/**
-	 * Sets the point coordinates.
-	 * @param point
-	 */
-	public void setPoint(Point2D point) {
-		this.point = point;
-	}
-	
-	/**
-	 * Gets the background color.
-	 * @return
-	 */
-	public Color getBackgroundColor() {
-		return backgroundColor;
-	}
-	
-	/**
-	 * Sets the background color.
-	 * @param color 
-	 */
-	private void setBackgroundColor(Color color) {
-		this.backgroundColor = color;
-	}
-	
-	/**
-	 * Gets the circle radius.
-	 * @return
-	 */
-	public int getRadius() {
-		return RADIUS;
-	}
-	
-	/**
-	 * Gets the font color.
-	 * @return
-	 */
-	public Color getFontColor() {
-		return this.fontColor;
-	}
-	
-	/**
-	 * Sets the font color.
-	 * @param fontColor
-	 */
-	private void setFontColor(Color fontColor) {
-		this.fontColor = fontColor;
-	}
-	
-	/**
-	 * Sets the circle to use highlighted colors if the parameter 
-	 * is true.
-	 * @param highlight a boolean value for switching on/off highlighted colors
-	 */
-	public void setHighlighter(boolean highlight) {
-		if (highlight) {
-			setFontColor(Color.rgb(49, 116, 222));
-			setBackgroundColor(Color.rgb(155, 244, 167));
-			setBorderColor(Color.rgb(49, 116, 222));
-	
-		} else {
-			setFontColor(Color.web("#FCFCFC"));
-			setBackgroundColor(Color.rgb(49, 116, 222));
-			setBorderColor(Color.rgb(99, 99, 99));
-		}
-	}
-
-	/**
-	 * Overrides the default toString method and gets the String representation
-	 * of a circle.
-	 * @return A String representation of the circle object.
-	 */
-	@Override
-	public String toString() {
-		
-		return "Search Key# " + searchKey  + 
-				" (x,y) = ("  + point.getX() + ", " + point.getY() + ")";
-	}
-}
+package com.ericcanull.fxbinarytree.shape;
+
+import javafx.geometry.Point2D;
+import javafx.scene.canvas.GraphicsContext;
+import javafx.scene.paint.Color;
+import javafx.scene.text.Font;
+import javafx.scene.text.FontWeight;
+import javafx.scene.text.Text;
+
+
+/**
+ * Creates a circle object with methods for controlling it's point locale,
+ * background color, border color, font color, and number id.
+ * @author Eric Canull
+ * @version 1.0
+ */
+public final class Circle {
+	
+	/**
+	 * The font for the numbers inside the circle.
+	 */
+	final Font font =  Font.font("Cooper Black", FontWeight.BOLD, 16);
+
+	/**
+	 * The radius of the circle.
+	 */
+	public static final int RADIUS = 26;
+	
+	/**
+	 * The search key for searching and deleting circles.
+	 */
+	private final Integer searchKey;
+	
+	// The circle attributes
+	private Point2D point;
+	private Color backgroundColor;
+	private Color borderColor;
+	private Color fontColor;
+
+	/**
+	 * Creates a circle object with methods for controlling it's point locale,
+	 * background color, border color, font color, search key.
+	 * @param searchKey a <code>Integer</code> search key for searching and deleting within an index.
+	 */
+	public Circle(Integer searchKey) {
+		this.searchKey = searchKey;
+		this.backgroundColor = Color.web("#FCFCFC");
+	}
+	
+	/**
+	 * 
+	 * @param searchKey a integer id number for searching and deleting from an index.
+	 * @param point a Cartesian coordinate using x and y float numbers.
+	 */
+	public Circle(Integer searchKey, Point2D point) {
+		this.searchKey = searchKey;
+		this.point = point;
+		this.backgroundColor = Color.rgb(49, 116, 222);
+		this.setBorderColor(Color.rgb(99, 99, 99));
+		this.fontColor = Color.web("#FCFCFC");
+		
+	}
+
+	/**
+	 * Draws the circle at a new position
+	 * @param gc The graphics object to use for drawing to a component
+	 */
+	public void draw(GraphicsContext gc) {
+		//(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
+		gc.setLineWidth(3); // Sets the width of the lines
+
+		// Create a circle
+		gc.setFill(backgroundColor);
+		gc.fillOval(point.getX() - RADIUS, point.getY() - RADIUS, 2 * RADIUS, 2 * RADIUS);
+
+		// Outline the circle border
+		gc.setStroke(borderColor);
+		gc.strokeOval(point.getX() - RADIUS, point.getY() - RADIUS, 2 * RADIUS, 2 * RADIUS);
+
+		// Draw the id number inside the circle
+		gc.setFont(font);
+		gc.setFill(getFontColor());
+
+		Text text = new Text(getKey());
+		text.setFont(font);
+		double width = text.getLayoutBounds().getWidth();
+
+		gc.fillText(getKey(),
+					point.getX() - (width / 2),
+					point.getY() + (font.getSize() / 4)); // approximate centering for the height
+	}
+
+	private String getKey() {
+		return Integer.toString(getSearchKey());
+	}
+	/**
+	 * Get the search key number.
+	 * @return A integer of the circle index value. 
+	 */
+	public Integer getSearchKey() {
+		return this.searchKey;
+	}
+	
+	/**
+	 * Gets the border color.
+	 * @return A color for the circle border
+	 */
+	public Color getBorderColor() {
+		return borderColor;
+	}
+	
+	/**
+	 * Sets the border color.
+	 * @param borderColor
+	 */
+	private void setBorderColor(Color borderColor) {
+		this.borderColor = borderColor;
+	}
+	
+	/**
+	 * Gets the point coordinates.
+	 * @return 
+	 */
+	public Point2D getPoint() {
+		return point;
+	}
+	
+	/**
+	 * Sets the point coordinates.
+	 * @param point
+	 */
+	public void setPoint(Point2D point) {
+		this.point = point;
+	}
+	
+	/**
+	 * Gets the background color.
+	 * @return
+	 */
+	public Color getBackgroundColor() {
+		return backgroundColor;
+	}
+	
+	/**
+	 * Sets the background color.
+	 * @param color 
+	 */
+	private void setBackgroundColor(Color color) {
+		this.backgroundColor = color;
+	}
+	
+	/**
+	 * Gets the circle radius.
+	 * @return
+	 */
+	public int getRadius() {
+		return RADIUS;
+	}
+	
+	/**
+	 * Gets the font color.
+	 * @return
+	 */
+	public Color getFontColor() {
+		return this.fontColor;
+	}
+	
+	/**
+	 * Sets the font color.
+	 * @param fontColor
+	 */
+	private void setFontColor(Color fontColor) {
+		this.fontColor = fontColor;
+	}
+	
+	/**
+	 * Sets the circle to use highlighted colors if the parameter 
+	 * is true.
+	 * @param highlight a boolean value for switching on/off highlighted colors
+	 */
+	public void setHighlighter(boolean highlight) {
+		if (highlight) {
+			setFontColor(Color.rgb(49, 116, 222));
+			setBackgroundColor(Color.rgb(155, 244, 167));
+			setBorderColor(Color.rgb(49, 116, 222));
+	
+		} else {
+			setFontColor(Color.web("#FCFCFC"));
+			setBackgroundColor(Color.rgb(49, 116, 222));
+			setBorderColor(Color.rgb(99, 99, 99));
+		}
+	}
+
+	/**
+	 * Overrides the default toString method and gets the String representation
+	 * of a circle.
+	 * @return A String representation of the circle object.
+	 */
+	@Override
+	public String toString() {
+		
+		return "Search Key# " + searchKey  + 
+				" (x,y) = ("  + point.getX() + ", " + point.getY() + ")";
+	}
+}
diff --git a/src/main/java/shape/Line.java b/src/main/java/com/ericcanull/fxbinarytree/shape/Line.java
similarity index 95%
rename from src/main/java/shape/Line.java
rename to src/main/java/com/ericcanull/fxbinarytree/shape/Line.java
index bce48ef..a7af40d 100644
--- a/src/main/java/shape/Line.java
+++ b/src/main/java/com/ericcanull/fxbinarytree/shape/Line.java
@@ -1,109 +1,109 @@
-package shape;
-
-import javafx.geometry.Point2D;
-import javafx.scene.canvas.GraphicsContext;
-import javafx.scene.paint.Color;
-
-/**
- * Creates a line object with methods for controlling it's point locale,
- * color, and size.
- * @author Eric Canull
- * @version 1.0
- */
-public final class Line {
-	
-	/**
-	 * Default color is the panel foreground.
-	 */
-	private static final Color UI_DEFAULT_COLOR = Color.rgb(99, 99, 99);
-	
-	/**
-	 * Highlight color for searching and inserting.
-	 */
-	private static final Color HIGHLIGHT_COLOR = Color.rgb(49, 116, 222);
-	
-	// The circle attributes
-	private Point2D point, point2;
-	private Color color;
-	
-	/**
-	 * Creates a line object with methods for controlling it's point locale,
-	 * background color, border color, font color, and number id.
-	 */
-	public Line() {
-		this.color = UI_DEFAULT_COLOR;
-	}
-	
-	/**
-	 * 
-	 * @param point a Cartesian coordinate using x and y float numbers.
-	 */
-	public Line(Point2D point, Point2D point2) {
-		this.point = point;
-		this.point2 = point;
-		this.color = UI_DEFAULT_COLOR;
-	}
-
-	/**
-	 * Draws the line at a specified position
-	 * @param gc The graphics object to use for drawing to a component
-	 */
-	public void draw(GraphicsContext gc) {
-	//	g2D.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
-		gc.setLineWidth(4); // Sets the width of the lines
-
-		// Fill the line
-		gc.setStroke(color);
-		gc.strokeLine(point.getX(), point.getY(), point2.getX(), point2.getY());
-	}
-	
-	/**
-	 * Gets the point coordinates.
-	 * @return A point 
-	 */
-	public Point2D getPoint() {
-		return point;
-	}
-	
-	/**
-	 * Sets the point coordinates.
-	 * @param point A Cartesian coordinate
-	 */
-	public void setPoint(Point2D point, Point2D point2) {
-		this.point = point;
-		this.point2 = point2;
-	}
-	
-	/**
-	 * Gets the point coordinates.
-	 * @return A Cartesian coordinate
-	 */
-	public Point2D getPoint2() {
-		return point2;
-	}
-	
-	/**
-	 * Sets the line to use highlighted colors if the parameter 
-	 * is true.
-	 * @param highlight a boolean value for switching on/off highlighted colors
-	 */
-	public void setHighlighter(boolean highlight) {
-		if (highlight) {
-			this.color = HIGHLIGHT_COLOR;
-		} else {
-			this.color = UI_DEFAULT_COLOR;
-		}
-	}
-
-	/**
-	 * Overrides the default toString method and gets the String representation
-	 * of a line.
-	 * @return A String representation of the line
-	 */
-	@Override
-	public String toString() {
-		
-		return " (x,y) = ("  + point.getX() + ", " + point.getY() + ")"
-			+  " (x,y) = ("  + point2.getX() + ", " + point2.getY()+ ")";
-	}
-}
+package com.ericcanull.fxbinarytree.shape;
+
+import javafx.geometry.Point2D;
+import javafx.scene.canvas.GraphicsContext;
+import javafx.scene.paint.Color;
+
+/**
+ * Creates a line object with methods for controlling it's point locale,
+ * color, and size.
+ * @author Eric Canull
+ * @version 1.0
+ */
+public final class Line {
+	
+	/**
+	 * Default color is the panel foreground.
+	 */
+	private static final Color UI_DEFAULT_COLOR = Color.rgb(99, 99, 99);
+	
+	/**
+	 * Highlight color for searching and inserting.
+	 */
+	private static final Color HIGHLIGHT_COLOR = Color.rgb(49, 116, 222);
+	
+	// The circle attributes
+	private Point2D point, point2;
+	private Color color;
+	
+	/**
+	 * Creates a line object with methods for controlling it's point locale,
+	 * background color, border color, font color, and number id.
+	 */
+	public Line() {
+		this.color = UI_DEFAULT_COLOR;
+	}
+	
+	/**
+	 * 
+	 * @param point a Cartesian coordinate using x and y float numbers.
+	 */
+	public Line(Point2D point, Point2D point2) {
+		this.point = point;
+		this.point2 = point;
+		this.color = UI_DEFAULT_COLOR;
+	}
+
+	/**
+	 * Draws the line at a specified position
+	 * @param gc The graphics object to use for drawing to a component
+	 */
+	public void draw(GraphicsContext gc) {
+	//	g2D.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
+		gc.setLineWidth(4); // Sets the width of the lines
+
+		// Fill the line
+		gc.setStroke(color);
+		gc.strokeLine(point.getX(), point.getY(), point2.getX(), point2.getY());
+	}
+	
+	/**
+	 * Gets the point coordinates.
+	 * @return A point 
+	 */
+	public Point2D getPoint() {
+		return point;
+	}
+	
+	/**
+	 * Sets the point coordinates.
+	 * @param point A Cartesian coordinate
+	 */
+	public void setPoint(Point2D point, Point2D point2) {
+		this.point = point;
+		this.point2 = point2;
+	}
+	
+	/**
+	 * Gets the point coordinates.
+	 * @return A Cartesian coordinate
+	 */
+	public Point2D getPoint2() {
+		return point2;
+	}
+	
+	/**
+	 * Sets the line to use highlighted colors if the parameter 
+	 * is true.
+	 * @param highlight a boolean value for switching on/off highlighted colors
+	 */
+	public void setHighlighter(boolean highlight) {
+		if (highlight) {
+			this.color = HIGHLIGHT_COLOR;
+		} else {
+			this.color = UI_DEFAULT_COLOR;
+		}
+	}
+
+	/**
+	 * Overrides the default toString method and gets the String representation
+	 * of a line.
+	 * @return A String representation of the line
+	 */
+	@Override
+	public String toString() {
+		
+		return " (x,y) = ("  + point.getX() + ", " + point.getY() + ")"
+			+  " (x,y) = ("  + point2.getX() + ", " + point2.getY()+ ")";
+	}
+}
diff --git a/src/main/java/tree/BinarySearchTree.java b/src/main/java/com/ericcanull/fxbinarytree/tree/BinarySearchTree.java
similarity index 95%
rename from src/main/java/tree/BinarySearchTree.java
rename to src/main/java/com/ericcanull/fxbinarytree/tree/BinarySearchTree.java
index eecf114..79896bc 100644
--- a/src/main/java/tree/BinarySearchTree.java
+++ b/src/main/java/com/ericcanull/fxbinarytree/tree/BinarySearchTree.java
@@ -1,262 +1,263 @@
-package tree;
-
-import java.util.Objects;
-import shape.Circle;
-
-/**
- * Binary search tree. 
- * Inherits isEmpty(), makeEmpty(), getRootItem(), and the
- * use of the constructors from tree.BinaryTreeBasis Assumption: A tree contains at
- * most one item with a given search key at any time.
- * 
- * @author Eric Canull
- * @version 1.0
- */
-public final class BinarySearchTree extends BinaryTreeBasis {
-
-	/**
-	 * Binary search tree.
-	 */
-	public BinarySearchTree() {
-		this.root = null;
-	}
-
-	/**
-	 * Binary search tree.
-	 * @param rootCircle
-	 * @Overload Default constructor
-	 */
-	public BinarySearchTree(Circle rootCircle) {
-		super(rootCircle);
-	}
-
-	/**
-	 * Inserts a new circle into the tree.
-	 * @param newCircle
-	 */
-	public void insertItem(Circle newCircle) {
-		root = insertItem(root, newCircle);
-	}
-	
-	/**
-	 * Inserts a new circle into the tree.
-	 * @param tNode a tree node
-	 * @param newCircle a new circle
-	 * @return 
-	 * @Overload insertItem() 
-	 */
-	protected TreeNode insertItem(TreeNode tNode, Circle newCircle) {
-		TreeNode newSubtree;
-		
-		if (tNode == null) {
-			tNode = new TreeNode(newCircle, null, null);
-			return tNode;
-		}
-		
-		Circle nodeItem = tNode.rootCircle;
-
-		if(Objects.equals(newCircle.getSearchKey(), nodeItem.getSearchKey())) {
-		    return tNode;
-        }
-
-		if (newCircle.getSearchKey() < nodeItem.getSearchKey()) {
-			newSubtree = insertItem(tNode.leftCircle, newCircle);
-			tNode.leftCircle = newSubtree;
-			return tNode;
-		}
-		
-		newSubtree = insertItem(tNode.rightCircle, newCircle);
-		tNode.rightCircle = newSubtree;
-		return tNode;
-	}
-	
-	/**
-	 * Retrieves a circle from the tree.
-	 * @param searchKey a unique identifying value
-	 * @return An integer search key number
-	 */
-	public Integer retrieveItem(Integer searchKey) {
-		return retrieveItem(root, searchKey);
-	}
-	
-	
-	/**
-	 * Searches for a circle from the tree.
-	 * @param tNode a tree node 
-	 * @param searchKey a unique identifying value
-	 * @return An integer search key number
-	 * @Overload retrieveItem()
-	 */
-	protected Integer retrieveItem(TreeNode tNode, Integer searchKey) {
-		Integer treeItem;
-		if (tNode == null) {
-			treeItem = null;
-
-		} else {
-			tNode.highlightFlag = true;
-			Circle nodeItem = tNode.rootCircle;
-			if (Objects.equals(searchKey, nodeItem.getSearchKey())) {
-				tNode.highlightFlag = true;
-				treeItem = tNode.rootCircle.getSearchKey();
-			} else if (searchKey < nodeItem.getSearchKey()) {
-				tNode.leftCircle.highlightFlag = true;
-				treeItem = retrieveItem(tNode.leftCircle, searchKey);
-			} else {
-				tNode.rightCircle.highlightFlag = true;
-				treeItem = retrieveItem(tNode.rightCircle, searchKey);
-			}
-		}
-
-		return treeItem;
-	}
-	
-	/**
-	 * Deletes a circle from the tree.
-	 * @param searchKey a unique identifying value
-	 * @throws TreeException if search key cannot be located.
-	 */
-	public void deleteItem(Integer searchKey) throws TreeException {
-		root = deleteItem(root, searchKey);
-	}
-	
-	/**
-	 * Deletes a circle from the tree.
-	 * @param tNode a tree node 
-	 * @param searchKey a unique identifying value
-	 * @return A tree.TreeNode from within the tree
-	 * @Overload deleteItem()
-	 */
-	protected TreeNode deleteItem(TreeNode tNode, Integer searchKey) {
-		TreeNode newSubtree;
-		
-		if (tNode == null) {
-			throw new TreeException("tree.TreeException: Item not found");
-		}
-		
-		Circle nodeItem = tNode.rootCircle;
-		if (Objects.equals(searchKey, nodeItem.getSearchKey())) {
-			tNode = deleteNode(tNode);
-
-		} else if (searchKey < nodeItem.getSearchKey()) {
-			newSubtree = deleteItem(tNode.leftCircle, searchKey);
-			tNode.leftCircle = newSubtree;
-		}
-
-		else {
-			newSubtree = deleteItem(tNode.rightCircle, searchKey);
-			tNode.rightCircle = newSubtree;
-		}
-
-		return tNode;
-	}
-	
-	/**
-	 * Helper method finds and replaces a deleted node. 
-	 * @param tNode A tree.TreeNode from within the tree
-	 * @return A tree.TreeNode from within the tree
-	 */
-	protected TreeNode deleteNode(TreeNode tNode) {
-
-		Circle replacementItem;
-
-		if ((tNode.leftCircle == null) && (tNode.rightCircle == null)) {
-			return null;
-		}
-
-		else if (tNode.leftCircle == null) {
-			return tNode.rightCircle;
-		}
-
-		else if (tNode.rightCircle == null) {
-			return tNode.leftCircle;
-		} else {
-
-			replacementItem = findLeftmost(tNode.rightCircle);
-			tNode.rootCircle = replacementItem;
-			tNode.rightCircle = deleteLeftmost(tNode.rightCircle);
-			return tNode;
-		}
-	}
-
-	/**
-	 * Helper method for searching and deleting left-side nodes.
-	 * @param tNode
-	 * @return
-	 */
-	protected Circle findLeftmost(TreeNode tNode) {
-		if (tNode.leftCircle == null) {
-			return tNode.rootCircle;
-		}
-		return findLeftmost(tNode.leftCircle);
-	}
-	
-	/**
-	 * Helper method for searching and deleting right-side nodes.
-	 * @param tNode
-	 * @return
-	 */
-	protected TreeNode deleteLeftmost(TreeNode tNode) {
-		if (tNode.leftCircle == null) {
-			return tNode.rightCircle;
-		}
-		tNode.leftCircle = deleteLeftmost(tNode.leftCircle);
-		return tNode;
-	}
-	
-	/**
-	 * Resets the color to the default.
-	 * @param tNode
-	 */
-	public void setResetColor(TreeNode tNode) {
-		 resetColor(tNode);
-	}
-	
-	
-	/**
-	 * Resets the color to the default.
-	 * @param tNode A node in the tree
-	 * @Overload
-	 */
-	protected void resetColor(TreeNode tNode) {
-		if (tNode != null) {
-			tNode.highlightFlag = false;
-
-			if (tNode.leftCircle != null) {
-				tNode.leftCircle.highlightFlag = false;
-			}
-
-			if (tNode.rightCircle != null) {
-				tNode.rightCircle.highlightFlag = false;
-			}
-			resetColor(tNode.leftCircle);
-			resetColor(tNode.rightCircle);
-		}
-	}
-
-	/**
-	 * Gets the height of the tree
-	 * @param root
-	 * @return
-	 */
-	public int getHeight(TreeNode root) {
-		if (root == null)
-			return 0;
-		return Math.max(getHeight(root.leftCircle), getHeight(root.rightCircle)) + 1;
-	}
-	
-	/**
-	 * Gets the size of the tree
-	 * @param root
-	 * @return
-	 */
-	public int getSize(TreeNode root) {
-		if (root == null)
-			return 0;
-		return (getSize(root.leftCircle) + getSize(root.rightCircle)) + 1;
-	}
-	
-	@Override
-	public void setRootItem(Circle newItem) {
-		root = new TreeNode(newItem, null, null);
-	}
-}
+package com.ericcanull.fxbinarytree.tree;
+
+import com.ericcanull.fxbinarytree.shape.Circle;
+
+import java.util.Objects;
+
+/**
+ * Binary search tree. 
+ * Inherits isEmpty(), makeEmpty(), getRootItem(), and the
+ * use of the constructors from tree.BinaryTreeBasis Assumption: A tree contains at
+ * most one item with a given search key at any time.
+ * 
+ * @author Eric Canull
+ * @version 1.0
+ */
+public final class BinarySearchTree extends BinaryTreeBasis {
+
+	/**
+	 * Binary search tree.
+	 */
+	public BinarySearchTree() {
+		this.root = null;
+	}
+
+	/**
+	 * Binary search tree.
+	 * @param rootCircle
+	 * @Overload Default constructor
+	 */
+	public BinarySearchTree(Circle rootCircle) {
+		super(rootCircle);
+	}
+
+	/**
+	 * Inserts a new circle into the tree.
+	 * @param newCircle
+	 */
+	public void insertItem(Circle newCircle) {
+		root = insertItem(root, newCircle);
+	}
+	
+	/**
+	 * Inserts a new circle into the tree.
+	 * @param tNode a tree node
+	 * @param newCircle a new circle
+	 * @return 
+	 * @Overload insertItem() 
+	 */
+	protected TreeNode insertItem(TreeNode tNode, Circle newCircle) {
+		TreeNode newSubtree;
+		
+		if (tNode == null) {
+			tNode = new TreeNode(newCircle, null, null);
+			return tNode;
+		}
+		
+		Circle nodeItem = tNode.rootCircle;
+
+		if(Objects.equals(newCircle.getSearchKey(), nodeItem.getSearchKey())) {
+		    return tNode;
+        }
+
+		if (newCircle.getSearchKey() < nodeItem.getSearchKey()) {
+			newSubtree = insertItem(tNode.leftCircle, newCircle);
+			tNode.leftCircle = newSubtree;
+			return tNode;
+		}
+		
+		newSubtree = insertItem(tNode.rightCircle, newCircle);
+		tNode.rightCircle = newSubtree;
+		return tNode;
+	}
+	
+	/**
+	 * Retrieves a circle from the tree.
+	 * @param searchKey a unique identifying value
+	 * @return An integer search key number
+	 */
+	public Integer retrieveItem(Integer searchKey) {
+		return retrieveItem(root, searchKey);
+	}
+	
+	
+	/**
+	 * Searches for a circle from the tree.
+	 * @param tNode a tree node 
+	 * @param searchKey a unique identifying value
+	 * @return An integer search key number
+	 * @Overload retrieveItem()
+	 */
+	protected Integer retrieveItem(TreeNode tNode, Integer searchKey) {
+		Integer treeItem;
+		if (tNode == null) {
+			treeItem = null;
+
+		} else {
+			tNode.highlightFlag = true;
+			Circle nodeItem = tNode.rootCircle;
+			if (Objects.equals(searchKey, nodeItem.getSearchKey())) {
+				tNode.highlightFlag = true;
+				treeItem = tNode.rootCircle.getSearchKey();
+			} else if (searchKey < nodeItem.getSearchKey()) {
+				tNode.leftCircle.highlightFlag = true;
+				treeItem = retrieveItem(tNode.leftCircle, searchKey);
+			} else {
+				tNode.rightCircle.highlightFlag = true;
+				treeItem = retrieveItem(tNode.rightCircle, searchKey);
+			}
+		}
+
+		return treeItem;
+	}
+	
+	/**
+	 * Deletes a circle from the tree.
+	 * @param searchKey a unique identifying value
+	 * @throws TreeException if search key cannot be located.
+	 */
+	public void deleteItem(Integer searchKey) throws TreeException {
+		root = deleteItem(root, searchKey);
+	}
+	
+	/**
+	 * Deletes a circle from the tree.
+	 * @param tNode a tree node 
+	 * @param searchKey a unique identifying value
+	 * @return A tree.TreeNode from within the tree
+	 * @Overload deleteItem()
+	 */
+	protected TreeNode deleteItem(TreeNode tNode, Integer searchKey) {
+		TreeNode newSubtree;
+		
+		if (tNode == null) {
+			throw new TreeException("tree.TreeException: Item not found");
+		}
+		
+		Circle nodeItem = tNode.rootCircle;
+		if (Objects.equals(searchKey, nodeItem.getSearchKey())) {
+			tNode = deleteNode(tNode);
+
+		} else if (searchKey < nodeItem.getSearchKey()) {
+			newSubtree = deleteItem(tNode.leftCircle, searchKey);
+			tNode.leftCircle = newSubtree;
+		}
+
+		else {
+			newSubtree = deleteItem(tNode.rightCircle, searchKey);
+			tNode.rightCircle = newSubtree;
+		}
+
+		return tNode;
+	}
+	
+	/**
+	 * Helper method finds and replaces a deleted node. 
+	 * @param tNode A tree.TreeNode from within the tree
+	 * @return A tree.TreeNode from within the tree
+	 */
+	protected TreeNode deleteNode(TreeNode tNode) {
+
+		Circle replacementItem;
+
+		if ((tNode.leftCircle == null) && (tNode.rightCircle == null)) {
+			return null;
+		}
+
+		else if (tNode.leftCircle == null) {
+			return tNode.rightCircle;
+		}
+
+		else if (tNode.rightCircle == null) {
+			return tNode.leftCircle;
+		} else {
+
+			replacementItem = findLeftmost(tNode.rightCircle);
+			tNode.rootCircle = replacementItem;
+			tNode.rightCircle = deleteLeftmost(tNode.rightCircle);
+			return tNode;
+		}
+	}
+
+	/**
+	 * Helper method for searching and deleting left-side nodes.
+	 * @param tNode
+	 * @return
+	 */
+	protected Circle findLeftmost(TreeNode tNode) {
+		if (tNode.leftCircle == null) {
+			return tNode.rootCircle;
+		}
+		return findLeftmost(tNode.leftCircle);
+	}
+	
+	/**
+	 * Helper method for searching and deleting right-side nodes.
+	 * @param tNode
+	 * @return
+	 */
+	protected TreeNode deleteLeftmost(TreeNode tNode) {
+		if (tNode.leftCircle == null) {
+			return tNode.rightCircle;
+		}
+		tNode.leftCircle = deleteLeftmost(tNode.leftCircle);
+		return tNode;
+	}
+	
+	/**
+	 * Resets the color to the default.
+	 * @param tNode
+	 */
+	public void setResetColor(TreeNode tNode) {
+		 resetColor(tNode);
+	}
+	
+	
+	/**
+	 * Resets the color to the default.
+	 * @param tNode A node in the tree
+	 * @Overload
+	 */
+	protected void resetColor(TreeNode tNode) {
+		if (tNode != null) {
+			tNode.highlightFlag = false;
+
+			if (tNode.leftCircle != null) {
+				tNode.leftCircle.highlightFlag = false;
+			}
+
+			if (tNode.rightCircle != null) {
+				tNode.rightCircle.highlightFlag = false;
+			}
+			resetColor(tNode.leftCircle);
+			resetColor(tNode.rightCircle);
+		}
+	}
+
+	/**
+	 * Gets the height of the tree
+	 * @param root
+	 * @return
+	 */
+	public int getHeight(TreeNode root) {
+		if (root == null)
+			return 0;
+		return Math.max(getHeight(root.leftCircle), getHeight(root.rightCircle)) + 1;
+	}
+	
+	/**
+	 * Gets the size of the tree
+	 * @param root
+	 * @return
+	 */
+	public int getSize(TreeNode root) {
+		if (root == null)
+			return 0;
+		return (getSize(root.leftCircle) + getSize(root.rightCircle)) + 1;
+	}
+	
+	@Override
+	public void setRootItem(Circle newItem) {
+		root = new TreeNode(newItem, null, null);
+	}
+}
diff --git a/src/main/java/tree/BinaryTreeBasis.java b/src/main/java/com/ericcanull/fxbinarytree/tree/BinaryTreeBasis.java
similarity index 92%
rename from src/main/java/tree/BinaryTreeBasis.java
rename to src/main/java/com/ericcanull/fxbinarytree/tree/BinaryTreeBasis.java
index 39e4e34..374b409 100644
--- a/src/main/java/tree/BinaryTreeBasis.java
+++ b/src/main/java/com/ericcanull/fxbinarytree/tree/BinaryTreeBasis.java
@@ -1,66 +1,66 @@
-package tree;
-
-import shape.Circle;
-
-/**
- * An abstract base class for a binary tree.
- * @author Eric Canull
- */
-public abstract class BinaryTreeBasis {
-
-	/**
-	 * Inherited by the concrete BST class.
-	 */
-	public TreeNode root;
-	
-	/**
-	 * An abstract base class for the BST.
-	 */
-	public BinaryTreeBasis() {
-		root = null;
-	}
-	
-	/**
-	 * An abstract base class for the BST.
-	 * @param rootCircle
-	 * @Overload Default constructor
-	 */
-	public BinaryTreeBasis(Circle rootCircle) {
-		root = new TreeNode(rootCircle, null, null);
-	}
-	
-	/**
-	 * Checks if the tree is empty.
-	 * @return <code>true</code> if the tree has items
-	 */
-	public boolean isEmpty() {
-		return root == null;
-	}
-	
-	/**
-	 * Makes the tree empty.
-	 */
-	public void makeEmpty() {
-		root = null;
-	}
-
-	/**
-	 * Gets the root item.
-	 * @return A shape.Circle object representing the tree root
-	 * @throws TreeException
-	 */
-	public TreeNode getRoot() throws TreeException {
-		if (root == null) {
-			throw new TreeException("tree.TreeException: Empty Tree");
-		}
-		
-		return root;
-	}
-	
-	/**
-	 * Sets the root item. 
-	 * @param newCircle a shape.Circle object with a tree search key
-	 */
-	public abstract void setRootItem(Circle newCircle);
-
+package com.ericcanull.fxbinarytree.tree;
+
+import com.ericcanull.fxbinarytree.shape.Circle;
+
+/**
+ * An abstract base class for a binary tree.
+ * @author Eric Canull
+ */
+public abstract class BinaryTreeBasis {
+
+	/**
+	 * Inherited by the concrete BST class.
+	 */
+	public TreeNode root;
+	
+	/**
+	 * An abstract base class for the BST.
+	 */
+	public BinaryTreeBasis() {
+		root = null;
+	}
+	
+	/**
+	 * An abstract base class for the BST.
+	 * @param rootCircle
+	 * @Overload Default constructor
+	 */
+	public BinaryTreeBasis(Circle rootCircle) {
+		root = new TreeNode(rootCircle, null, null);
+	}
+	
+	/**
+	 * Checks if the tree is empty.
+	 * @return <code>true</code> if the tree has items
+	 */
+	public boolean isEmpty() {
+		return root == null;
+	}
+	
+	/**
+	 * Makes the tree empty.
+	 */
+	public void makeEmpty() {
+		root = null;
+	}
+
+	/**
+	 * Gets the root item.
+	 * @return A shape.Circle object representing the tree root
+	 * @throws TreeException
+	 */
+	public TreeNode getRoot() throws TreeException {
+		if (root == null) {
+			throw new TreeException("tree.TreeException: Empty Tree");
+		}
+		
+		return root;
+	}
+	
+	/**
+	 * Sets the root item. 
+	 * @param newCircle a shape.Circle object with a tree search key
+	 */
+	public abstract void setRootItem(Circle newCircle);
+
 }
\ No newline at end of file
diff --git a/src/main/java/tree/QueueException.java b/src/main/java/com/ericcanull/fxbinarytree/tree/QueueException.java
similarity index 89%
rename from src/main/java/tree/QueueException.java
rename to src/main/java/com/ericcanull/fxbinarytree/tree/QueueException.java
index ec5712c..3691a56 100644
--- a/src/main/java/tree/QueueException.java
+++ b/src/main/java/com/ericcanull/fxbinarytree/tree/QueueException.java
@@ -1,16 +1,16 @@
-package tree;
-
-/**
- * Defines an exception that is thrown when a queue exception occurs.
- */
-@SuppressWarnings("serial")
-public final class QueueException extends RuntimeException {
-
-	/**
-	 * Constructs an object with specific message
-	 * @param message A string literal specifying the details of this exception
-	 */
-	public QueueException(String message) {
-		super(message);
-	}
-}
+package com.ericcanull.fxbinarytree.tree;
+
+/**
+ * Defines an exception that is thrown when a queue exception occurs.
+ */
+@SuppressWarnings("serial")
+public final class QueueException extends RuntimeException {
+
+	/**
+	 * Constructs an object with specific message
+	 * @param message A string literal specifying the details of this exception
+	 */
+	public QueueException(String message) {
+		super(message);
+	}
+}
diff --git a/src/main/java/tree/TreeException.java b/src/main/java/com/ericcanull/fxbinarytree/tree/TreeException.java
similarity index 89%
rename from src/main/java/tree/TreeException.java
rename to src/main/java/com/ericcanull/fxbinarytree/tree/TreeException.java
index c90e259..39cff04 100644
--- a/src/main/java/tree/TreeException.java
+++ b/src/main/java/com/ericcanull/fxbinarytree/tree/TreeException.java
@@ -1,16 +1,16 @@
-package tree;
-
-/**
- * Defines an exception that is thrown when tree exception occurs.
- */
-@SuppressWarnings("serial")
-public final class TreeException extends RuntimeException {
-	
-	/**
-	 * Constructs an object with specific message
-	 * @param message A string literal specifying the details of this exception
-	 */
-	public TreeException(String message) {
-		super(message);
-	}
-}
+package com.ericcanull.fxbinarytree.tree;
+
+/**
+ * Defines an exception that is thrown when tree exception occurs.
+ */
+@SuppressWarnings("serial")
+public final class TreeException extends RuntimeException {
+	
+	/**
+	 * Constructs an object with specific message
+	 * @param message A string literal specifying the details of this exception
+	 */
+	public TreeException(String message) {
+		super(message);
+	}
+}
diff --git a/src/main/java/tree/TreeIterator.java b/src/main/java/com/ericcanull/fxbinarytree/tree/TreeIterator.java
similarity index 95%
rename from src/main/java/tree/TreeIterator.java
rename to src/main/java/com/ericcanull/fxbinarytree/tree/TreeIterator.java
index 0b20f52..5a52808 100644
--- a/src/main/java/tree/TreeIterator.java
+++ b/src/main/java/com/ericcanull/fxbinarytree/tree/TreeIterator.java
@@ -1,115 +1,115 @@
-package tree;
-
-import java.util.Iterator;
-import java.util.LinkedList;
-import java.util.NoSuchElementException;
-
-/**
- * Iterates through the tree using the java.util.Iterator<E> interface.
- * @author Eric Canull
- * @version 1.0
- */
-public final class TreeIterator implements Iterator<Integer> {
-	
-	private BinaryTreeBasis binaryTree;
-	private TreeNode currentNode;
-	private LinkedList<TreeNode> queue;
-	
-	/**
-	 * Iterates through the tree using the java.util.Iterator<E> interface.
-	 * @param binaryTree the abstract binary tree class
-	 */
-	public TreeIterator(BinaryTreeBasis binaryTree) {
-		this.binaryTree = binaryTree;
-		currentNode = null;
-		queue = new LinkedList<>();
-	}
-	
-	/**
-	 * Determines if there are elements in the queue. 
-	 * @Return true if the iteration has more elements
-	 */
-	public boolean hasNext() {
-		return !queue.isEmpty();
-	}
-	
-	/**
-	 * Gets the next element in the queue.
-	 * @return An <code>Integer</code> numbered search key.
-	 */
-	public Integer next() throws NoSuchElementException {
-		try {
-			currentNode = queue.remove();
-			return currentNode.rootCircle.getSearchKey();
-		} catch (QueueException e) {
-			throw new NoSuchElementException();
-		}
-	}
-	
-	/**
-	 * Unsupported remove operation. Throws an exception when invoked.
-	 */
-	public void remove() throws UnsupportedOperationException {
-		throw new UnsupportedOperationException();
-	}
-	
-	/**
-	 * Sets the tree traversal to in-order
-	 */
-	public void setPreorder() {
-		queue.clear();
-		preorder(binaryTree.root);
-	}
-	
-	/**
-	 * Recursively traverses the tree in-order
-	 * @param treeNode A tree with nodes
-	 */
-	private void preorder(TreeNode treeNode) {
-		if (treeNode != null) {
-			queue.add(treeNode);
-			preorder(treeNode.leftCircle);
-			preorder(treeNode.rightCircle);
-		}
-	}
-	
-	/**
-	 * Sets the tree traversal to in-order
-	 */
-	public void setInorder() {
-		queue.clear();
-		inorder(binaryTree.root);
-	}
-	
-	/**
-	 * Recursively traverses the tree in-order
-	 * @param treeNode A tree with nodes
-	 */
-	private void inorder(TreeNode treeNode) {
-		if (treeNode != null) {
-			inorder(treeNode.leftCircle);
-			queue.add(treeNode);
-			inorder(treeNode.rightCircle);
-		}
-	}
-	
-	/**
-	 * Sets the tree to traverse in post-order
-	 */
-	public void setPostorder() {
-		queue.clear();
-		postorder(binaryTree.root);
-	}
-	
-	/**
-	 * Recursively traverses the tree post-order
-	 * @param treeNode A tree with nodes
-	 */
-	private void postorder(TreeNode treeNode) {
-		if (treeNode != null) {
-			postorder(treeNode.leftCircle);
-			postorder(treeNode.rightCircle);
-			queue.add(treeNode);
-		}
-	}
+package com.ericcanull.fxbinarytree.tree;
+
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.NoSuchElementException;
+
+/**
+ * Iterates through the tree using the java.util.Iterator<E> interface.
+ * @author Eric Canull
+ * @version 1.0
+ */
+public final class TreeIterator implements Iterator<Integer> {
+	
+	private BinaryTreeBasis binaryTree;
+	private TreeNode currentNode;
+	private LinkedList<TreeNode> queue;
+	
+	/**
+	 * Iterates through the tree using the java.util.Iterator<E> interface.
+	 * @param binaryTree the abstract binary tree class
+	 */
+	public TreeIterator(BinaryTreeBasis binaryTree) {
+		this.binaryTree = binaryTree;
+		currentNode = null;
+		queue = new LinkedList<>();
+	}
+	
+	/**
+	 * Determines if there are elements in the queue. 
+	 * @Return true if the iteration has more elements
+	 */
+	public boolean hasNext() {
+		return !queue.isEmpty();
+	}
+	
+	/**
+	 * Gets the next element in the queue.
+	 * @return An <code>Integer</code> numbered search key.
+	 */
+	public Integer next() throws NoSuchElementException {
+		try {
+			currentNode = queue.remove();
+			return currentNode.rootCircle.getSearchKey();
+		} catch (QueueException e) {
+			throw new NoSuchElementException();
+		}
+	}
+	
+	/**
+	 * Unsupported remove operation. Throws an exception when invoked.
+	 */
+	public void remove() throws UnsupportedOperationException {
+		throw new UnsupportedOperationException();
+	}
+	
+	/**
+	 * Sets the tree traversal to in-order
+	 */
+	public void setPreorder() {
+		queue.clear();
+		preorder(binaryTree.root);
+	}
+	
+	/**
+	 * Recursively traverses the tree in-order
+	 * @param treeNode A tree with nodes
+	 */
+	private void preorder(TreeNode treeNode) {
+		if (treeNode != null) {
+			queue.add(treeNode);
+			preorder(treeNode.leftCircle);
+			preorder(treeNode.rightCircle);
+		}
+	}
+	
+	/**
+	 * Sets the tree traversal to in-order
+	 */
+	public void setInorder() {
+		queue.clear();
+		inorder(binaryTree.root);
+	}
+	
+	/**
+	 * Recursively traverses the tree in-order
+	 * @param treeNode A tree with nodes
+	 */
+	private void inorder(TreeNode treeNode) {
+		if (treeNode != null) {
+			inorder(treeNode.leftCircle);
+			queue.add(treeNode);
+			inorder(treeNode.rightCircle);
+		}
+	}
+	
+	/**
+	 * Sets the tree to traverse in post-order
+	 */
+	public void setPostorder() {
+		queue.clear();
+		postorder(binaryTree.root);
+	}
+	
+	/**
+	 * Recursively traverses the tree post-order
+	 * @param treeNode A tree with nodes
+	 */
+	private void postorder(TreeNode treeNode) {
+		if (treeNode != null) {
+			postorder(treeNode.leftCircle);
+			postorder(treeNode.rightCircle);
+			queue.add(treeNode);
+		}
+	}
 }
\ No newline at end of file
diff --git a/src/main/java/tree/TreeNode.java b/src/main/java/com/ericcanull/fxbinarytree/tree/TreeNode.java
similarity index 86%
rename from src/main/java/tree/TreeNode.java
rename to src/main/java/com/ericcanull/fxbinarytree/tree/TreeNode.java
index 1253bf7..30e3453 100644
--- a/src/main/java/tree/TreeNode.java
+++ b/src/main/java/com/ericcanull/fxbinarytree/tree/TreeNode.java
@@ -1,29 +1,29 @@
-package tree;
-
-import shape.Circle;
-
-/**
- * A binary tree using circle objects.
- * @author Eric Canull
- * @version 1.0
- */
-public class TreeNode {
-	
-	public Circle rootCircle;
-	public TreeNode leftCircle;
-	public TreeNode rightCircle;
-	public boolean highlightFlag;
-	
-	/**
-	 * A binary tree using circle objects.
-	 * @param rootCircle a root tree circle
-	 * @param leftCircle a left tree circle
-	 * @param rightCircle a right tree circle
-	 */
-	public TreeNode(Circle rootCircle, TreeNode leftCircle, TreeNode rightCircle) {
-		this.rootCircle = rootCircle;
-		this.leftCircle = null;
-		this.rightCircle = null;
-	}
-
-}
+package com.ericcanull.fxbinarytree.tree;
+
+import com.ericcanull.fxbinarytree.shape.Circle;
+
+/**
+ * A binary tree using circle objects.
+ * @author Eric Canull
+ * @version 1.0
+ */
+public class TreeNode {
+	
+	public Circle rootCircle;
+	public TreeNode leftCircle;
+	public TreeNode rightCircle;
+	public boolean highlightFlag;
+	
+	/**
+	 * A binary tree using circle objects.
+	 * @param rootCircle a root tree circle
+	 * @param leftCircle a left tree circle
+	 * @param rightCircle a right tree circle
+	 */
+	public TreeNode(Circle rootCircle, TreeNode leftCircle, TreeNode rightCircle) {
+		this.rootCircle = rootCircle;
+		this.leftCircle = null;
+		this.rightCircle = null;
+	}
+
+}
diff --git a/src/main/java/module-info.java b/src/main/java/module-info.java
new file mode 100644
index 0000000..05d9d0d
--- /dev/null
+++ b/src/main/java/module-info.java
@@ -0,0 +1,13 @@
+module com.ericcanull.fxbinarytree {
+    requires javafx.controls;
+    requires javafx.fxml;
+
+    // Export the package that has your controller classes to JavaFX
+    exports com.ericcanull.fxbinarytree.controller to javafx.fxml;
+
+    // Open the package that has your Main and controller classes
+    opens com.ericcanull.fxbinarytree.app;
+    opens com.ericcanull.fxbinarytree.controller;
+
+    exports com.ericcanull.fxbinarytree.app to javafx.graphics;
+}
\ No newline at end of file
diff --git a/target/classes/fxml/FXMLGraphicsPanel.fxml b/src/main/resources/com/ericcanull/fxbinarytree/fxml/FXMLGraphicsPanel.fxml
similarity index 96%
rename from target/classes/fxml/FXMLGraphicsPanel.fxml
rename to src/main/resources/com/ericcanull/fxbinarytree/fxml/FXMLGraphicsPanel.fxml
index 8e2025c..a220fc7 100644
--- a/target/classes/fxml/FXMLGraphicsPanel.fxml
+++ b/src/main/resources/com/ericcanull/fxbinarytree/fxml/FXMLGraphicsPanel.fxml
@@ -11,7 +11,7 @@
 <?import javafx.scene.layout.HBox?>
 <?import javafx.scene.layout.RowConstraints?>
 
-<BorderPane fx:id="root_container" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="500.0" prefWidth="900.0" stylesheets="@../style/graphics_controller.css" xmlns="http://javafx.com/javafx/8.0.111" xmlns:fx="http://javafx.com/fxml/1" fx:controller="controller.GraphicsController">
+<BorderPane fx:id="root_container" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="500.0" prefWidth="900.0" stylesheets="@../style/graphics_controller.css" xmlns="http://javafx.com/javafx/8.0.111" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.ericcanull.fxbinarytree.controller.GraphicsController">
    <bottom>
       <HBox alignment="CENTER" spacing="5.0" BorderPane.alignment="CENTER">
          <children>
diff --git a/src/main/resources/image/binarytree_screenshot.png b/src/main/resources/com/ericcanull/fxbinarytree/image/binarytree_screenshot.png
similarity index 100%
rename from src/main/resources/image/binarytree_screenshot.png
rename to src/main/resources/com/ericcanull/fxbinarytree/image/binarytree_screenshot.png
diff --git a/target/classes/style/graphics_controller.css b/src/main/resources/com/ericcanull/fxbinarytree/style/graphics_controller.css
similarity index 99%
rename from target/classes/style/graphics_controller.css
rename to src/main/resources/com/ericcanull/fxbinarytree/style/graphics_controller.css
index aaf4271..c6c81fa 100644
--- a/target/classes/style/graphics_controller.css
+++ b/src/main/resources/com/ericcanull/fxbinarytree/style/graphics_controller.css
@@ -1,3 +1,4 @@
+/*noinspection ALL*/
 .root {
     -fx-font-family: "System";
     -fx-font-size: 1em;
diff --git a/target/classes/app/Main.class b/target/classes/app/Main.class
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HcmV?d00001

diff --git a/src/main/resources/fxml/FXMLGraphicsPanel.fxml b/target/classes/com/ericcanull/fxbinarytree/fxml/FXMLGraphicsPanel.fxml
similarity index 96%
rename from src/main/resources/fxml/FXMLGraphicsPanel.fxml
rename to target/classes/com/ericcanull/fxbinarytree/fxml/FXMLGraphicsPanel.fxml
index 8e2025c..a220fc7 100644
--- a/src/main/resources/fxml/FXMLGraphicsPanel.fxml
+++ b/target/classes/com/ericcanull/fxbinarytree/fxml/FXMLGraphicsPanel.fxml
@@ -11,7 +11,7 @@
 <?import javafx.scene.layout.HBox?>
 <?import javafx.scene.layout.RowConstraints?>
 
-<BorderPane fx:id="root_container" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="500.0" prefWidth="900.0" stylesheets="@../style/graphics_controller.css" xmlns="http://javafx.com/javafx/8.0.111" xmlns:fx="http://javafx.com/fxml/1" fx:controller="controller.GraphicsController">
+<BorderPane fx:id="root_container" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="500.0" prefWidth="900.0" stylesheets="@../style/graphics_controller.css" xmlns="http://javafx.com/javafx/8.0.111" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.ericcanull.fxbinarytree.controller.GraphicsController">
    <bottom>
       <HBox alignment="CENTER" spacing="5.0" BorderPane.alignment="CENTER">
          <children>
diff --git a/target/classes/com/ericcanull/fxbinarytree/image/binarytree_screenshot.png b/target/classes/com/ericcanull/fxbinarytree/image/binarytree_screenshot.png
new file mode 100644
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diff --git a/target/classes/com/ericcanull/fxbinarytree/shape/Circle.class b/target/classes/com/ericcanull/fxbinarytree/shape/Circle.class
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diff --git a/target/classes/com/ericcanull/fxbinarytree/shape/Line.class b/target/classes/com/ericcanull/fxbinarytree/shape/Line.class
new file mode 100644
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diff --git a/src/main/resources/style/graphics_controller.css b/target/classes/com/ericcanull/fxbinarytree/style/graphics_controller.css
similarity index 99%
rename from src/main/resources/style/graphics_controller.css
rename to target/classes/com/ericcanull/fxbinarytree/style/graphics_controller.css
index aaf4271..c6c81fa 100644
--- a/src/main/resources/style/graphics_controller.css
+++ b/target/classes/com/ericcanull/fxbinarytree/style/graphics_controller.css
@@ -1,3 +1,4 @@
+/*noinspection ALL*/
 .root {
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     -fx-font-size: 1em;
diff --git a/target/classes/com/ericcanull/fxbinarytree/tree/BinarySearchTree.class b/target/classes/com/ericcanull/fxbinarytree/tree/BinarySearchTree.class
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diff --git a/target/classes/com/ericcanull/fxbinarytree/tree/BinaryTreeBasis.class b/target/classes/com/ericcanull/fxbinarytree/tree/BinaryTreeBasis.class
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diff --git a/target/classes/com/ericcanull/fxbinarytree/tree/QueueException.class b/target/classes/com/ericcanull/fxbinarytree/tree/QueueException.class
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diff --git a/target/classes/com/ericcanull/fxbinarytree/tree/TreeException.class b/target/classes/com/ericcanull/fxbinarytree/tree/TreeException.class
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diff --git a/target/classes/com/ericcanull/fxbinarytree/tree/TreeIterator.class b/target/classes/com/ericcanull/fxbinarytree/tree/TreeIterator.class
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diff --git a/target/classes/com/ericcanull/fxbinarytree/tree/TreeNode.class b/target/classes/com/ericcanull/fxbinarytree/tree/TreeNode.class
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diff --git a/target/classes/controller/GraphicsTree.class b/target/classes/controller/GraphicsTree.class
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deleted file mode 100644
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GIT binary patch
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From 391347c692ad4c266571411f2a75ae6e12bf35c4 Mon Sep 17 00:00:00 2001
From: Agha Muhammad Aslam <aghaaslam246@gmail.com>
Date: Fri, 15 Dec 2023 16:22:42 +0100
Subject: [PATCH 2/2] Update project settings and modify code for clarity

This commit primarily updates the project settings within the .idea/workspace.xml file. It changes and adds several elements to enhance code functionality. Additionally, the code within various .java files has been modified to improve readability, clarity, and efficiency. Especially, argument "ActionEvent event" has been removed from method signatures when not used and minor grammar corrections are done across multiple files to make comments more understandable.
---
 .idea/workspace.xml                           |  41 +++++--
 .../controller/GraphicsController.java        |  15 ++-
 .../fxbinarytree/controller/GraphicsTree.java | 106 ++++++++----------
 .../ericcanull/fxbinarytree/shape/Circle.java |  62 +++-------
 .../ericcanull/fxbinarytree/shape/Line.java   |   8 +-
 .../fxbinarytree/tree/BinarySearchTree.java   |  64 +++++------
 .../fxbinarytree/tree/BinaryTreeBasis.java    |  14 +--
 .../fxbinarytree/tree/QueueException.java     |   5 +-
 .../fxbinarytree/tree/TreeException.java      |   5 +-
 .../fxbinarytree/tree/TreeIterator.java       |   6 +-
 .../fxbinarytree/tree/TreeNode.java           |   4 +-
 .../fxbinarytree/fxml/FXMLGraphicsPanel.fxml  |  47 ++++----
 .../controller/GraphicsTree.class             | Bin 9613 -> 9394 bytes
 .../fxbinarytree/fxml/FXMLGraphicsPanel.fxml  |  47 ++++----
 .../ericcanull/fxbinarytree/shape/Line.class  | Bin 2358 -> 2358 bytes
 .../fxbinarytree/tree/BinarySearchTree.class  | Bin 4419 -> 4122 bytes
 .../fxbinarytree/tree/BinaryTreeBasis.class   | Bin 1320 -> 1162 bytes
 .../fxbinarytree/tree/QueueException.class    | Bin 407 -> 407 bytes
 .../fxbinarytree/tree/TreeException.class     | Bin 404 -> 404 bytes
 .../fxbinarytree/tree/TreeIterator.class      | Bin 2709 -> 2709 bytes
 .../fxbinarytree/tree/TreeNode.class          | Bin 677 -> 571 bytes
 21 files changed, 199 insertions(+), 225 deletions(-)

diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index f5c0868..b65bd4c 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -178,9 +178,12 @@
       </PATH>
     </treeState>
   </component>
-  <component name="ProjectColorInfo"><![CDATA[{
-  "associatedIndex": 7
-}]]></component>
+  <component name="ProblemsViewState">
+    <option name="selectedTabId" value="CurrentFile" />
+  </component>
+  <component name="ProjectColorInfo">{
+  &quot;associatedIndex&quot;: 7
+}</component>
   <component name="ProjectFrameBounds">
     <option name="x" value="82" />
     <option name="width" value="1838" />
@@ -342,9 +345,20 @@
     "git-widget-placeholder": "master",
     "kotlin-language-version-configured": "true",
     "last_opened_file_path": "/Users/aslam/Documents/GitHub/fxbinarytree-fork",
+    "node.js.detected.package.eslint": "true",
+    "node.js.detected.package.tslint": "true",
+    "node.js.selected.package.eslint": "(autodetect)",
+    "node.js.selected.package.tslint": "(autodetect)",
     "nodejs_package_manager_path": "npm",
     "settings.editor.selected.configurable": "reference.settings.project.maven.importing",
     "vue.rearranger.settings.migration": "true"
+  },
+  "keyToStringList": {
+    "GitStage.ChangesTree.GroupingKeys": [
+      "directory",
+      "module",
+      "repository"
+    ]
   }
 }]]></component>
   <component name="RecentsManager">
@@ -584,12 +598,6 @@
         <option name="Make" enabled="true" />
       </method>
     </configuration>
-    <configuration default="true" type="JetRunConfigurationType">
-      <module name="fxbinarytree" />
-      <method v="2">
-        <option name="Make" enabled="true" />
-      </method>
-    </configuration>
     <configuration default="true" type="TestNG">
       <option name="TEST_OBJECT" value="CLASS" />
       <option name="WORKING_DIRECTORY" value="$MODULE_DIR$" />
@@ -624,7 +632,6 @@
   <component name="SpellCheckerSettings" RuntimeDictionaries="0" Folders="0" CustomDictionaries="0" DefaultDictionary="application-level" UseSingleDictionary="true" transferred="true" />
   <component name="TaskManager">
     <task active="true" id="Default" summary="Default task">
-      <changelist id="" name="Default" comment="" />
       <created>1499366758985</created>
       <option name="number" value="Default" />
       <option name="presentableId" value="Default" />
@@ -640,7 +647,17 @@
       <workItem from="1500012397864" duration="603000" />
       <workItem from="1500360399244" duration="8000" />
       <workItem from="1702651575682" duration="50000" />
+      <workItem from="1702651639246" duration="1940000" />
     </task>
+    <task id="LOCAL-00001" summary="Update project settings and configs&#10;&#10;This commit includes a significant update and cleanup of project settings stored in .idea and workspace.xml files. Additionally, Maven wrapper scripts were added to support the build process. A related project configuration file (.iml) was removed.">
+      <option name="closed" value="true" />
+      <created>1702653207767</created>
+      <option name="number" value="00001" />
+      <option name="presentableId" value="LOCAL-00001" />
+      <option name="project" value="LOCAL" />
+      <updated>1702653207767</updated>
+    </task>
+    <option name="localTasksCounter" value="2" />
     <servers />
   </component>
   <component name="TimeTrackingManager">
@@ -685,6 +702,10 @@
   <component name="TypeScriptGeneratedFilesManager">
     <option name="version" value="3" />
   </component>
+  <component name="VcsManagerConfiguration">
+    <MESSAGE value="Update project settings and configs&#10;&#10;This commit includes a significant update and cleanup of project settings stored in .idea and workspace.xml files. Additionally, Maven wrapper scripts were added to support the build process. A related project configuration file (.iml) was removed." />
+    <option name="LAST_COMMIT_MESSAGE" value="Update project settings and configs&#10;&#10;This commit includes a significant update and cleanup of project settings stored in .idea and workspace.xml files. Additionally, Maven wrapper scripts were added to support the build process. A related project configuration file (.iml) was removed." />
+  </component>
   <component name="XDebuggerManager">
     <breakpoint-manager>
       <breakpoints>
diff --git a/src/main/java/com/ericcanull/fxbinarytree/controller/GraphicsController.java b/src/main/java/com/ericcanull/fxbinarytree/controller/GraphicsController.java
index 5d9ba2a..6c06d63 100644
--- a/src/main/java/com/ericcanull/fxbinarytree/controller/GraphicsController.java
+++ b/src/main/java/com/ericcanull/fxbinarytree/controller/GraphicsController.java
@@ -1,6 +1,5 @@
 package com.ericcanull.fxbinarytree.controller;
 
-import javafx.event.ActionEvent;
 import javafx.fxml.FXML;
 import javafx.fxml.Initializable;
 import javafx.scene.control.Alert;
@@ -47,7 +46,7 @@ public void initialize(URL location, ResourceBundle resources) {
 	/**
 	 *  Performs the action when the search button is clicked.
 	 */
-	@FXML private void searchOnAction(ActionEvent event) {
+	@FXML private void searchOnAction( ) {
 		try {
 			graphicsTree.search(Integer.parseInt(input_field.getText().trim()));
 		} catch (NumberFormatException nfe) {
@@ -64,7 +63,7 @@ public void initialize(URL location, ResourceBundle resources) {
 	/**
 	 * Performs the action when the delete button is clicked.
 	 */
-	@FXML private void deleteOnAction(ActionEvent event) {
+	@FXML private void deleteOnAction( ) {
 		try {
 			graphicsTree.delete(Integer.parseInt(input_field.getText().trim()));
 		} catch (NumberFormatException nfe) {
@@ -83,7 +82,7 @@ private void clearTree() {
 	/**
 	 * Performs the action when the clear button is clicked.
 	 */
-	@FXML private void clearOnAction(ActionEvent event) {
+	@FXML private void clearOnAction( ) {
 		Alert alert = new Alert(Alert.AlertType.CONFIRMATION, "Do you want to empty the tree?", ButtonType.OK);
 		alert.showAndWait()
 				.filter(response -> response == ButtonType.OK)
@@ -94,7 +93,7 @@ private void clearTree() {
 	/**
 	 *  Performs the action when the insert button is clicked.
 	 */
-	@FXML private void insertOnAction(ActionEvent event) {
+	@FXML private void insertOnAction( ) {
 		try {
 			graphicsTree.insert(Integer.parseInt(input_field.getText().trim()));
 		} catch (NumberFormatException nfe) {
@@ -109,7 +108,7 @@ private void clearTree() {
 	/**
 	 * Performs the action when the first traversal button is clicked.
 	 */
-	@FXML private void inorderOnAction(ActionEvent event) {
+	@FXML private void inorderOnAction( ) {
 		graphicsTree.setInorder();
 		traversal_textarea.setText(graphicsTree.printTree());
 	}
@@ -117,7 +116,7 @@ private void clearTree() {
 	/**
 	 *  Performs the action when the second traversal button is clicked.
 	 */
-	@FXML private void preorderOnAction(ActionEvent event) {
+	@FXML private void preorderOnAction( ) {
 		graphicsTree.setPreorder();
 		traversal_textarea.setText(graphicsTree.printTree());
 	}
@@ -125,7 +124,7 @@ private void clearTree() {
 	/**
 	 *  Performs the action when the third traversal button is clicked.
 	 */
-	@FXML private void postorderOnAction(ActionEvent event) {
+	@FXML private void postorderOnAction( ) {
 		graphicsTree.setPostorder();
 		traversal_textarea.setText(graphicsTree.printTree());
 	}
diff --git a/src/main/java/com/ericcanull/fxbinarytree/controller/GraphicsTree.java b/src/main/java/com/ericcanull/fxbinarytree/controller/GraphicsTree.java
index f801321..450f890 100644
--- a/src/main/java/com/ericcanull/fxbinarytree/controller/GraphicsTree.java
+++ b/src/main/java/com/ericcanull/fxbinarytree/controller/GraphicsTree.java
@@ -11,12 +11,11 @@
 import java.util.Objects;
 
 /**
- * Draws the tree and updates the graphics to display according to the
+ * Draws the tree and updates the graphics to display, according to the
  * searching, inserting, deleting, and traversal options.
  * @author Eric Canull
  * @version 1.0
  */
-@SuppressWarnings("serial")
 public final class GraphicsTree extends Canvas {
 
 	/**
@@ -30,7 +29,7 @@ public final class GraphicsTree extends Canvas {
 	private int maxTreeHeight; 			// Max tree height;
 
 	/**
-	 * Draws the tree and updates the graphics to display according to the
+	 * Draws the tree and updates the graphics to display, according to the
 	 * searching, inserting, deleting, and traversal options.
 	 */
 	public GraphicsTree() {
@@ -40,15 +39,10 @@ public GraphicsTree() {
 
 		createTree();
 	}
-	
-	/**
-     * Changes the tree rendered by this panel.
-     */
-    public void setTree(BinarySearchTree root) {  tree = root; }
 
 	/**
 	 * Creates the initial binary search tree with the default values
-	 * in the numbers array.
+	 * in the number's array.
 	 */
 	public void createTree() {
 
@@ -65,17 +59,18 @@ public void createTree() {
 
 	/**
 	 * Set the max tree height.
+	 *
 	 * @param size a <code>Integer</code> number for the tree max size
-	 * @return An <code>Integer</code> max tree size
 	 */
-	private int setMaxTreeHeight(int size) {
+	private void setMaxTreeHeight( int size) {
 		this.maxTreeHeight = size;
-		return size;
 	}
 
 	/**
-	 * Searches for an search key number in the tree. If the number is found the tree will
-	 * be repainted to show the path. If the number cannot be found a notification
+	 * Searches for a search key number in the tree.
+	 * If the number is found, the tree will
+	 * be repainted to show the path.
+	 * If the number cannot be found, a notification
 	 * message will be displayed.
 	 * 
 	 * @param searchKey a <code>Integer</code> number for finding a tree.TreeNode
@@ -137,17 +132,18 @@ public void setPostorder() {
 
 	/**
 	 * Inserts a circle into the tree. If the tree height reaches the max height
-	 * displays an notification request to change the max height.
+	 * displays a notification request to change the max height.
 	 * @param searchKey a <code>integer</code> number to insert in the tree
 	 */
-	public void insert(Integer searchKey) {
+	@SuppressWarnings ("ConstantValue")
+	public void insert( Integer searchKey) {
 		insertCircle = new Circle(searchKey);
 		tree.insertItem(insertCircle);
 		int heightOption = 2;
 		drawTree();
 
 
-	//	 If the height of the tree equals max height
+		// If the height of the tree equals max height
 		if (tree.getHeight(tree.getRoot()) == maxTreeHeight) {
 			// Display option message
 
@@ -157,57 +153,51 @@ public void insert(Integer searchKey) {
 					.filter(response -> response == ButtonType.YES)
 					.ifPresent(response -> alert.close());
 		}
-//			heightOption = JOptionPane.showConfirmDialog(null,
-//					"Reached max height. Would you like to increase the height?", " Height Adjust",
-//					JOptionPane.YES_NO_OPTION);
 
-			// Option 'Yes'selected: Change the height
-			if (heightOption == 0) {
+		// Option 'Yes' selected: Change the height
+		if (heightOption == 0) {
 //				String height = JOptionPane.showInputDialog("Enter a new height between 7 and 10.");
-				heightOption = 7;
-				try {
-					int newHeight = heightOption;
-//					int newHeight = Integer.parseInt(heightOption);
-					// Confirm height input is within acceptable range
-					if (newHeight > tree.getHeight(tree.getRoot()) && newHeight <= 10) {
-						setMaxTreeHeight(newHeight);
-					} else {
-						throw new TreeException("tree.TreeException on change height.");
-					}
-
-					// Error occurred: Reverse changes and exit
-				} catch (NumberFormatException | TreeException e) {
-					Alert alert = new Alert(Alert.AlertType.WARNING, "Input error. The height was not changed.",
-							ButtonType.OK);
-					alert.showAndWait()
-							.filter(response -> response == ButtonType.OK)
-							.ifPresent(response -> alert.close());
-
-					tree.deleteItem(insertCircle.getSearchKey()); // Remove the inserted circle
-					tree.setResetColor(tree.root); 				  // Reset highlight flag for all nodes
+			heightOption = 7;
+			try {
+				// Confirm height input is within acceptable range
+				if ( heightOption > tree.getHeight(tree.getRoot()) && heightOption <= 10) {
+					setMaxTreeHeight(heightOption);
+				} else {
+					throw new TreeException("tree.TreeException on change height.");
 				}
 
-				// Option 'No' selected: Reverse changes and exit
-			} else if (heightOption == 1) {
-				Alert alert = new Alert(Alert.AlertType.CONFIRMATION, "The number was not inserted.",
+				// Error occurred: Reverse changes and exit
+			} catch (NumberFormatException | TreeException e) {
+				Alert alert = new Alert(Alert.AlertType.WARNING, "Input error. The height was not changed.",
 						ButtonType.OK);
 				alert.showAndWait()
 						.filter(response -> response == ButtonType.OK)
 						.ifPresent(response -> alert.close());
 
-
 				tree.deleteItem(insertCircle.getSearchKey()); // Remove the inserted circle
-				tree.setResetColor(tree.root);                // Reset highlight flag for all nodes
+				tree.setResetColor(tree.root); 				  // Reset highlight flag for all nodes
+			}
 
+			// Option 'No' selected: Reverse changes and exit
+		} else if (heightOption == 1) {
+			Alert alert = new Alert(Alert.AlertType.CONFIRMATION, "The number was not inserted.",
+					ButtonType.OK);
+			alert.showAndWait()
+					.filter(response -> response == ButtonType.OK)
+					.ifPresent(response -> alert.close());
+
+
+			tree.deleteItem(insertCircle.getSearchKey()); // Remove the inserted circle
+			tree.setResetColor(tree.root);                // Reset highlight flag for all nodes
 
 
-		} else {
 
 		}
 	}
 
 	/**
-	 * Deletes a number from the tree. If the number is not able to be deleted display
+	 * Deletes a number from the tree.
+	 * If the number is not able to be deleted, display
 	 * a notification message.
 	 * @param searchKey <code>integer</code> number to delete from the tree
 	 */
@@ -233,14 +223,14 @@ public void makeEmpty() {
 	/**
 	 * Draws the binary tree on the component.
 	 */
-	protected void drawTree() {
+    private void drawTree( ) {
 		double width = getWidth();
 		double height = getHeight();
 
 		GraphicsContext gc = getGraphicsContext2D();
 		gc.clearRect(0, 0, width, height);
 
-		// If the tree is not empty; draw the lines and circles
+		// If the tree is not empty, draw the lines and circles
 		if (tree.root != null) {
 		int treeHeight = tree.getHeight(tree.root);
 			
@@ -259,13 +249,13 @@ protected void drawTree() {
 	 * @param yMin the maximum width to draw on the component
 	 * @param yMax the maximum height to draw on the component
 	 */
-	protected void drawTree(GraphicsContext gc, TreeNode treeNode, double xMin, double xMax, double yMin, double yMax) {
+    private void drawTree( GraphicsContext gc, TreeNode treeNode, double xMin, double xMax, double yMin, double yMax ) {
 
 		Point2D linePoint1; 	// Point_1
 		Point2D linePoint2;   // Point_2
 		Line newLine = new Line();  // Blank line
 		
-		// If left node is not null then draw a line to it
+		// If the left node is not null, then draw a line to it
 		if (treeNode.leftCircle != null) {
 			newLine.setHighlighter(false);
 			
@@ -283,7 +273,7 @@ protected void drawTree(GraphicsContext gc, TreeNode treeNode, double xMin, doub
 			drawTree(gc, treeNode.leftCircle, xMin, (xMin + xMax) / 2, yMin + yMax, yMax);
 		}
 
-		// If right node is not null then draw a line to it
+		// If the right node is not null, then draw a line to it
 		if (treeNode.rightCircle != null) {
 			newLine.setHighlighter(false);
 			
@@ -304,7 +294,7 @@ protected void drawTree(GraphicsContext gc, TreeNode treeNode, double xMin, doub
 	}
 
 	/**
-	 * Draws circles for every root, parent and child tree nodes.
+	 * Draws circles for every root, parent and child tree node.
 	 * @param gc graphics2D class for expanding the drawing tools
 	 * @param treeNode a tree with <code>Integer</code> index numbers
 	 * @param xMin the minimum width to draw on the component
@@ -312,7 +302,8 @@ protected void drawTree(GraphicsContext gc, TreeNode treeNode, double xMin, doub
 	 * @param yMin the minimum height to draw on the component
 	 * @param yMax the maximum height to draw on the component
 	 */
-	public void drawCircles(GraphicsContext gc, TreeNode treeNode, double xMin, double xMax, double yMin, double yMax) {
+	@SuppressWarnings ("ClassEscapesDefinedScope")
+	public void drawCircles( GraphicsContext gc, TreeNode treeNode, double xMin, double xMax, double yMin, double yMax) {
 
 		// Create a new point
 		Point2D point = new Point2D((xMin + xMax) / 2, yMin + yMax / 2);
@@ -344,6 +335,7 @@ public void drawCircles(GraphicsContext gc, TreeNode treeNode, double xMin, doub
 		}
 	}
 
+	@SuppressWarnings("unused")
 	public void clearCanvas() {
 		getGraphicsContext2D().clearRect(0, 0, this.getWidth(), this.getHeight());
 	}
diff --git a/src/main/java/com/ericcanull/fxbinarytree/shape/Circle.java b/src/main/java/com/ericcanull/fxbinarytree/shape/Circle.java
index 1ebcb08..05575e4 100644
--- a/src/main/java/com/ericcanull/fxbinarytree/shape/Circle.java
+++ b/src/main/java/com/ericcanull/fxbinarytree/shape/Circle.java
@@ -9,7 +9,7 @@
 
 
 /**
- * Creates a circle object with methods for controlling it's point locale,
+ * Creates a circle object with methods for controlling its point locale,
  * background color, border color, font color, and number id.
  * @author Eric Canull
  * @version 1.0
@@ -38,7 +38,7 @@ public final class Circle {
 	private Color fontColor;
 
 	/**
-	 * Creates a circle object with methods for controlling it's point locale,
+	 * Creates a circle object with methods for controlling its point locale,
 	 * background color, border color, font color, search key.
 	 * @param searchKey a <code>Integer</code> search key for searching and deleting within an index.
 	 */
@@ -49,9 +49,10 @@ public Circle(Integer searchKey) {
 	
 	/**
 	 * 
-	 * @param searchKey a integer id number for searching and deleting from an index.
+	 * @param searchKey an integer id number for searching and deleting from an index.
 	 * @param point a Cartesian coordinate using x and y float numbers.
 	 */
+	@SuppressWarnings("unused")
 	public Circle(Integer searchKey, Point2D point) {
 		this.searchKey = searchKey;
 		this.point = point;
@@ -95,71 +96,40 @@ private String getKey() {
 	}
 	/**
 	 * Get the search key number.
-	 * @return A integer of the circle index value. 
+	 * @return An integer of the circle index value.
 	 */
 	public Integer getSearchKey() {
 		return this.searchKey;
 	}
-	
-	/**
-	 * Gets the border color.
-	 * @return A color for the circle border
-	 */
-	public Color getBorderColor() {
-		return borderColor;
-	}
-	
+
 	/**
-	 * Sets the border color.
-	 * @param borderColor
+	 * Set the border color of the Circle.
+	 *
+	 * @param borderColor The color to set as the border color.
 	 */
 	private void setBorderColor(Color borderColor) {
 		this.borderColor = borderColor;
 	}
-	
-	/**
-	 * Gets the point coordinates.
-	 * @return 
-	 */
-	public Point2D getPoint() {
-		return point;
-	}
-	
+
 	/**
 	 * Sets the point coordinates.
-	 * @param point
+	 * @param point A Cartesian coordinate
 	 */
 	public void setPoint(Point2D point) {
 		this.point = point;
 	}
-	
-	/**
-	 * Gets the background color.
-	 * @return
-	 */
-	public Color getBackgroundColor() {
-		return backgroundColor;
-	}
-	
+
 	/**
 	 * Sets the background color.
-	 * @param color 
+	 * @param color  A color object
 	 */
 	private void setBackgroundColor(Color color) {
 		this.backgroundColor = color;
 	}
-	
-	/**
-	 * Gets the circle radius.
-	 * @return
-	 */
-	public int getRadius() {
-		return RADIUS;
-	}
-	
+
 	/**
 	 * Gets the font color.
-	 * @return
+	 * @return A color object
 	 */
 	public Color getFontColor() {
 		return this.fontColor;
@@ -167,7 +137,7 @@ public Color getFontColor() {
 	
 	/**
 	 * Sets the font color.
-	 * @param fontColor
+	 * @param fontColor A color object
 	 */
 	private void setFontColor(Color fontColor) {
 		this.fontColor = fontColor;
diff --git a/src/main/java/com/ericcanull/fxbinarytree/shape/Line.java b/src/main/java/com/ericcanull/fxbinarytree/shape/Line.java
index a7af40d..398c615 100644
--- a/src/main/java/com/ericcanull/fxbinarytree/shape/Line.java
+++ b/src/main/java/com/ericcanull/fxbinarytree/shape/Line.java
@@ -5,7 +5,7 @@
 import javafx.scene.paint.Color;
 
 /**
- * Creates a line object with methods for controlling it's point locale,
+ * Creates a line object with methods for controlling its point locale,
  * color, and size.
  * @author Eric Canull
  * @version 1.0
@@ -27,7 +27,7 @@ public final class Line {
 	private Color color;
 	
 	/**
-	 * Creates a line object with methods for controlling it's point locale,
+	 * Creates a line object with methods for controlling its point locale,
 	 * background color, border color, font color, and number id.
 	 */
 	public Line() {
@@ -38,6 +38,7 @@ public Line() {
 	 * 
 	 * @param point a Cartesian coordinate using x and y float numbers.
 	 */
+	@SuppressWarnings("unused")
 	public Line(Point2D point, Point2D point2) {
 		this.point = point;
 		this.point2 = point;
@@ -60,7 +61,7 @@ public void draw(GraphicsContext gc) {
 	/**
 	 * Gets the point coordinates.
 	 * @return A point 
-	 */
+	 */@SuppressWarnings("unused")
 	public Point2D getPoint() {
 		return point;
 	}
@@ -78,6 +79,7 @@ public void setPoint(Point2D point, Point2D point2) {
 	 * Gets the point coordinates.
 	 * @return A Cartesian coordinate
 	 */
+	@SuppressWarnings("unused")
 	public Point2D getPoint2() {
 		return point2;
 	}
diff --git a/src/main/java/com/ericcanull/fxbinarytree/tree/BinarySearchTree.java b/src/main/java/com/ericcanull/fxbinarytree/tree/BinarySearchTree.java
index 79896bc..626318d 100644
--- a/src/main/java/com/ericcanull/fxbinarytree/tree/BinarySearchTree.java
+++ b/src/main/java/com/ericcanull/fxbinarytree/tree/BinarySearchTree.java
@@ -24,16 +24,16 @@ public BinarySearchTree() {
 
 	/**
 	 * Binary search tree.
-	 * @param rootCircle
-	 * @Overload Default constructor
+	 * @param rootCircle a shape.Circle object with a tree search key
 	 */
+	@SuppressWarnings("unused")
 	public BinarySearchTree(Circle rootCircle) {
 		super(rootCircle);
 	}
 
 	/**
 	 * Inserts a new circle into the tree.
-	 * @param newCircle
+	 * @param newCircle a new circle
 	 */
 	public void insertItem(Circle newCircle) {
 		root = insertItem(root, newCircle);
@@ -43,14 +43,13 @@ public void insertItem(Circle newCircle) {
 	 * Inserts a new circle into the tree.
 	 * @param tNode a tree node
 	 * @param newCircle a new circle
-	 * @return 
-	 * @Overload insertItem() 
+	 * @return A tree.TreeNode from within the tree
 	 */
-	protected TreeNode insertItem(TreeNode tNode, Circle newCircle) {
+    private TreeNode insertItem( TreeNode tNode, Circle newCircle ) {
 		TreeNode newSubtree;
 		
 		if (tNode == null) {
-			tNode = new TreeNode(newCircle, null, null);
+			tNode = new TreeNode(newCircle);
 			return tNode;
 		}
 		
@@ -73,11 +72,11 @@ protected TreeNode insertItem(TreeNode tNode, Circle newCircle) {
 	
 	/**
 	 * Retrieves a circle from the tree.
+	 *
 	 * @param searchKey a unique identifying value
-	 * @return An integer search key number
 	 */
-	public Integer retrieveItem(Integer searchKey) {
-		return retrieveItem(root, searchKey);
+	public void retrieveItem( Integer searchKey) {
+		retrieveItem(root, searchKey);
 	}
 	
 	
@@ -86,9 +85,8 @@ public Integer retrieveItem(Integer searchKey) {
 	 * @param tNode a tree node 
 	 * @param searchKey a unique identifying value
 	 * @return An integer search key number
-	 * @Overload retrieveItem()
 	 */
-	protected Integer retrieveItem(TreeNode tNode, Integer searchKey) {
+    private Integer retrieveItem( TreeNode tNode, Integer searchKey ) {
 		Integer treeItem;
 		if (tNode == null) {
 			treeItem = null;
@@ -97,8 +95,7 @@ protected Integer retrieveItem(TreeNode tNode, Integer searchKey) {
 			tNode.highlightFlag = true;
 			Circle nodeItem = tNode.rootCircle;
 			if (Objects.equals(searchKey, nodeItem.getSearchKey())) {
-				tNode.highlightFlag = true;
-				treeItem = tNode.rootCircle.getSearchKey();
+                treeItem = tNode.rootCircle.getSearchKey();
 			} else if (searchKey < nodeItem.getSearchKey()) {
 				tNode.leftCircle.highlightFlag = true;
 				treeItem = retrieveItem(tNode.leftCircle, searchKey);
@@ -114,7 +111,7 @@ protected Integer retrieveItem(TreeNode tNode, Integer searchKey) {
 	/**
 	 * Deletes a circle from the tree.
 	 * @param searchKey a unique identifying value
-	 * @throws TreeException if search key cannot be located.
+	 * @throws TreeException if a search key cannot be located.
 	 */
 	public void deleteItem(Integer searchKey) throws TreeException {
 		root = deleteItem(root, searchKey);
@@ -125,9 +122,8 @@ public void deleteItem(Integer searchKey) throws TreeException {
 	 * @param tNode a tree node 
 	 * @param searchKey a unique identifying value
 	 * @return A tree.TreeNode from within the tree
-	 * @Overload deleteItem()
 	 */
-	protected TreeNode deleteItem(TreeNode tNode, Integer searchKey) {
+    private TreeNode deleteItem( TreeNode tNode, Integer searchKey ) {
 		TreeNode newSubtree;
 		
 		if (tNode == null) {
@@ -156,7 +152,7 @@ protected TreeNode deleteItem(TreeNode tNode, Integer searchKey) {
 	 * @param tNode A tree.TreeNode from within the tree
 	 * @return A tree.TreeNode from within the tree
 	 */
-	protected TreeNode deleteNode(TreeNode tNode) {
+    private TreeNode deleteNode( TreeNode tNode ) {
 
 		Circle replacementItem;
 
@@ -181,10 +177,10 @@ else if (tNode.rightCircle == null) {
 
 	/**
 	 * Helper method for searching and deleting left-side nodes.
-	 * @param tNode
-	 * @return
+	 * @param tNode A tree.TreeNode from within the tree
+	 * @return A tree.TreeNode from within the tree
 	 */
-	protected Circle findLeftmost(TreeNode tNode) {
+    private Circle findLeftmost( TreeNode tNode ) {
 		if (tNode.leftCircle == null) {
 			return tNode.rootCircle;
 		}
@@ -193,10 +189,10 @@ protected Circle findLeftmost(TreeNode tNode) {
 	
 	/**
 	 * Helper method for searching and deleting right-side nodes.
-	 * @param tNode
-	 * @return
+	 * @param tNode A tree.TreeNode from within the tree
+	 * @return A tree.TreeNode from within the tree
 	 */
-	protected TreeNode deleteLeftmost(TreeNode tNode) {
+    private TreeNode deleteLeftmost( TreeNode tNode ) {
 		if (tNode.leftCircle == null) {
 			return tNode.rightCircle;
 		}
@@ -206,7 +202,7 @@ protected TreeNode deleteLeftmost(TreeNode tNode) {
 	
 	/**
 	 * Resets the color to the default.
-	 * @param tNode
+	 * @param tNode A node in the tree
 	 */
 	public void setResetColor(TreeNode tNode) {
 		 resetColor(tNode);
@@ -216,9 +212,8 @@ public void setResetColor(TreeNode tNode) {
 	/**
 	 * Resets the color to the default.
 	 * @param tNode A node in the tree
-	 * @Overload
 	 */
-	protected void resetColor(TreeNode tNode) {
+    private void resetColor( TreeNode tNode ) {
 		if (tNode != null) {
 			tNode.highlightFlag = false;
 
@@ -236,8 +231,8 @@ protected void resetColor(TreeNode tNode) {
 
 	/**
 	 * Gets the height of the tree
-	 * @param root
-	 * @return
+	 * @param root A tree.TreeNode from within the tree
+	 * @return An integer representing the height of the tree
 	 */
 	public int getHeight(TreeNode root) {
 		if (root == null)
@@ -247,17 +242,14 @@ public int getHeight(TreeNode root) {
 	
 	/**
 	 * Gets the size of the tree
-	 * @param root
-	 * @return
+	 * @param root A tree.TreeNode from within the tree
+	 * @return An integer representing the size of the tree
 	 */
+	@SuppressWarnings("unused")
 	public int getSize(TreeNode root) {
 		if (root == null)
 			return 0;
 		return (getSize(root.leftCircle) + getSize(root.rightCircle)) + 1;
 	}
-	
-	@Override
-	public void setRootItem(Circle newItem) {
-		root = new TreeNode(newItem, null, null);
-	}
+
 }
diff --git a/src/main/java/com/ericcanull/fxbinarytree/tree/BinaryTreeBasis.java b/src/main/java/com/ericcanull/fxbinarytree/tree/BinaryTreeBasis.java
index 374b409..946af68 100644
--- a/src/main/java/com/ericcanull/fxbinarytree/tree/BinaryTreeBasis.java
+++ b/src/main/java/com/ericcanull/fxbinarytree/tree/BinaryTreeBasis.java
@@ -22,11 +22,10 @@ public BinaryTreeBasis() {
 	
 	/**
 	 * An abstract base class for the BST.
-	 * @param rootCircle
-	 * @Overload Default constructor
+	 * @param rootCircle a shape.Circle object with a tree search key
 	 */
 	public BinaryTreeBasis(Circle rootCircle) {
-		root = new TreeNode(rootCircle, null, null);
+		root = new TreeNode(rootCircle);
 	}
 	
 	/**
@@ -47,7 +46,7 @@ public void makeEmpty() {
 	/**
 	 * Gets the root item.
 	 * @return A shape.Circle object representing the tree root
-	 * @throws TreeException
+	 * @throws TreeException if the tree is empty
 	 */
 	public TreeNode getRoot() throws TreeException {
 		if (root == null) {
@@ -56,11 +55,4 @@ public TreeNode getRoot() throws TreeException {
 		
 		return root;
 	}
-	
-	/**
-	 * Sets the root item. 
-	 * @param newCircle a shape.Circle object with a tree search key
-	 */
-	public abstract void setRootItem(Circle newCircle);
-
 }
\ No newline at end of file
diff --git a/src/main/java/com/ericcanull/fxbinarytree/tree/QueueException.java b/src/main/java/com/ericcanull/fxbinarytree/tree/QueueException.java
index 3691a56..00cbf5c 100644
--- a/src/main/java/com/ericcanull/fxbinarytree/tree/QueueException.java
+++ b/src/main/java/com/ericcanull/fxbinarytree/tree/QueueException.java
@@ -1,13 +1,12 @@
 package com.ericcanull.fxbinarytree.tree;
 
 /**
- * Defines an exception that is thrown when a queue exception occurs.
+ * Defines an exception (thrown when a queue exception occurs).
  */
-@SuppressWarnings("serial")
 public final class QueueException extends RuntimeException {
 
 	/**
-	 * Constructs an object with specific message
+	 * Constructs an object with a specific message
 	 * @param message A string literal specifying the details of this exception
 	 */
 	public QueueException(String message) {
diff --git a/src/main/java/com/ericcanull/fxbinarytree/tree/TreeException.java b/src/main/java/com/ericcanull/fxbinarytree/tree/TreeException.java
index 39cff04..dff348d 100644
--- a/src/main/java/com/ericcanull/fxbinarytree/tree/TreeException.java
+++ b/src/main/java/com/ericcanull/fxbinarytree/tree/TreeException.java
@@ -1,13 +1,12 @@
 package com.ericcanull.fxbinarytree.tree;
 
 /**
- * Defines an exception that is thrown when tree exception occurs.
+ * Defines an exception (thrown when a tree exception occurs).
  */
-@SuppressWarnings("serial")
 public final class TreeException extends RuntimeException {
 	
 	/**
-	 * Constructs an object with specific message
+	 * Constructs an object with a specific message
 	 * @param message A string literal specifying the details of this exception
 	 */
 	public TreeException(String message) {
diff --git a/src/main/java/com/ericcanull/fxbinarytree/tree/TreeIterator.java b/src/main/java/com/ericcanull/fxbinarytree/tree/TreeIterator.java
index 5a52808..eacee53 100644
--- a/src/main/java/com/ericcanull/fxbinarytree/tree/TreeIterator.java
+++ b/src/main/java/com/ericcanull/fxbinarytree/tree/TreeIterator.java
@@ -11,9 +11,9 @@
  */
 public final class TreeIterator implements Iterator<Integer> {
 	
-	private BinaryTreeBasis binaryTree;
+	private final BinaryTreeBasis binaryTree;
 	private TreeNode currentNode;
-	private LinkedList<TreeNode> queue;
+	private final LinkedList<TreeNode> queue;
 	
 	/**
 	 * Iterates through the tree using the java.util.Iterator<E> interface.
@@ -27,7 +27,7 @@ public TreeIterator(BinaryTreeBasis binaryTree) {
 	
 	/**
 	 * Determines if there are elements in the queue. 
-	 * @Return true if the iteration has more elements
+	 * @return true if the iteration has more elements
 	 */
 	public boolean hasNext() {
 		return !queue.isEmpty();
diff --git a/src/main/java/com/ericcanull/fxbinarytree/tree/TreeNode.java b/src/main/java/com/ericcanull/fxbinarytree/tree/TreeNode.java
index 30e3453..4f55211 100644
--- a/src/main/java/com/ericcanull/fxbinarytree/tree/TreeNode.java
+++ b/src/main/java/com/ericcanull/fxbinarytree/tree/TreeNode.java
@@ -17,10 +17,8 @@ public class TreeNode {
 	/**
 	 * A binary tree using circle objects.
 	 * @param rootCircle a root tree circle
-	 * @param leftCircle a left tree circle
-	 * @param rightCircle a right tree circle
 	 */
-	public TreeNode(Circle rootCircle, TreeNode leftCircle, TreeNode rightCircle) {
+	public TreeNode( Circle rootCircle ) {
 		this.rootCircle = rootCircle;
 		this.leftCircle = null;
 		this.rightCircle = null;
diff --git a/src/main/resources/com/ericcanull/fxbinarytree/fxml/FXMLGraphicsPanel.fxml b/src/main/resources/com/ericcanull/fxbinarytree/fxml/FXMLGraphicsPanel.fxml
index a220fc7..574d5e1 100644
--- a/src/main/resources/com/ericcanull/fxbinarytree/fxml/FXMLGraphicsPanel.fxml
+++ b/src/main/resources/com/ericcanull/fxbinarytree/fxml/FXMLGraphicsPanel.fxml
@@ -14,35 +14,40 @@
 <BorderPane fx:id="root_container" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="500.0" prefWidth="900.0" stylesheets="@../style/graphics_controller.css" xmlns="http://javafx.com/javafx/8.0.111" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.ericcanull.fxbinarytree.controller.GraphicsController">
    <bottom>
       <HBox alignment="CENTER" spacing="5.0" BorderPane.alignment="CENTER">
-         <children>
-            <TextField fx:id="input_field" prefColumnCount="6" prefHeight="25.0" promptText="Key" />
-            <Button layoutX="227.0" layoutY="10.0" mnemonicParsing="false" onAction="#insertOnAction" prefHeight="35.0" prefWidth="90.0" styleClass="control-button" text="Insert" />
-            <Button mnemonicParsing="false" onAction="#searchOnAction" prefHeight="35.0" prefWidth="90.0" styleClass="control-button" text="Search" />
-            <Button layoutX="217.0" layoutY="10.0" mnemonicParsing="false" onAction="#deleteOnAction" prefHeight="35.0" prefWidth="90.0" styleClass="control-button" text="Delete" />
-            <Button layoutX="217.0" layoutY="10.0" mnemonicParsing="false" onAction="#clearOnAction" prefHeight="35.0" prefWidth="90.0" styleClass="control-button" text="Clear" />
-            <Button layoutX="211.0" layoutY="10.0" mnemonicParsing="false" onAction="#inorderOnAction" prefHeight="35.0" prefWidth="90.0" styleClass="control-button" text="Inorder" />
-            <Button layoutX="169.0" layoutY="10.0" mnemonicParsing="false" onAction="#preorderOnAction" prefHeight="35.0" prefWidth="90.0" styleClass="control-button" text="Preorder" />
-            <Button layoutX="151.0" layoutY="10.0" mnemonicParsing="false" onAction="#postorderOnAction" prefHeight="35.0" prefWidth="90.0" styleClass="control-button" text="Postorder" />
-         </children>
          <padding>
-            <Insets bottom="3.0" />
-         </padding></HBox>
+            <Insets bottom="3.0"/>
+         </padding>
+         <TextField fx:id="input_field" prefColumnCount="6" prefHeight="25.0" promptText="Key"/>
+         <Button layoutX="227.0" layoutY="10.0" mnemonicParsing="false" onAction="#insertOnAction" prefHeight="35.0"
+                 prefWidth="90.0"  text="Insert"/>
+         <Button mnemonicParsing="false" onAction="#searchOnAction" prefHeight="35.0" prefWidth="90.0"
+                  text="Search"/>
+         <Button layoutX="217.0" layoutY="10.0" mnemonicParsing="false" onAction="#deleteOnAction" prefHeight="35.0"
+                 prefWidth="90.0"  text="Delete"/>
+         <Button layoutX="217.0" layoutY="10.0" mnemonicParsing="false" onAction="#clearOnAction" prefHeight="35.0"
+                 prefWidth="90.0"  text="Clear"/>
+         <Button layoutX="211.0" layoutY="10.0" mnemonicParsing="false" onAction="#inorderOnAction" prefHeight="35.0"
+                 prefWidth="90.0"  text="Inorder"/>
+         <Button layoutX="169.0" layoutY="10.0" mnemonicParsing="false" onAction="#preorderOnAction" prefHeight="35.0"
+                 prefWidth="90.0"  text="Preorder"/>
+         <Button layoutX="151.0" layoutY="10.0" mnemonicParsing="false" onAction="#postorderOnAction" prefHeight="35.0"
+                 prefWidth="90.0"  text="Postorder"/>
+      </HBox>
    </bottom>
    <top>
       <GridPane alignment="CENTER_LEFT">
          <columnConstraints>
-            <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" />
+            <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0"/>
          </columnConstraints>
          <rowConstraints>
-            <RowConstraints maxHeight="-Infinity" minHeight="-Infinity" prefHeight="25.0" vgrow="NEVER" />
+            <RowConstraints maxHeight="-Infinity" minHeight="-Infinity" prefHeight="25.0" vgrow="NEVER"/>
          </rowConstraints>
-         <children>
-            <AnchorPane GridPane.hgrow="ALWAYS" GridPane.valignment="CENTER" GridPane.vgrow="NEVER">
-               <children>
-                  <TextArea fx:id="traversal_textarea" editable="false" maxHeight="-Infinity" maxWidth="1.7976931348623157E308" minHeight="-Infinity" prefHeight="20.0" prefRowCount="1" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0" />
-               </children>
-            </AnchorPane>
-         </children>
+         <AnchorPane GridPane.hgrow="ALWAYS" GridPane.valignment="CENTER" GridPane.vgrow="NEVER">
+            <TextArea fx:id="traversal_textarea" editable="false" maxHeight="-Infinity"
+                      maxWidth="1.7976931348623157E308" minHeight="-Infinity" prefHeight="20.0" prefRowCount="1"
+                      AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0"
+                      AnchorPane.topAnchor="0.0"/>
+         </AnchorPane>
       </GridPane>
    </top>
 </BorderPane>
diff --git a/target/classes/com/ericcanull/fxbinarytree/controller/GraphicsTree.class b/target/classes/com/ericcanull/fxbinarytree/controller/GraphicsTree.class
index 72a79d9f58956931a7a68fa934ad32f698eca868..da699eea60bea0495e69d9355af2355fc2c73f64 100644
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diff --git a/target/classes/com/ericcanull/fxbinarytree/fxml/FXMLGraphicsPanel.fxml b/target/classes/com/ericcanull/fxbinarytree/fxml/FXMLGraphicsPanel.fxml
index a220fc7..574d5e1 100644
--- a/target/classes/com/ericcanull/fxbinarytree/fxml/FXMLGraphicsPanel.fxml
+++ b/target/classes/com/ericcanull/fxbinarytree/fxml/FXMLGraphicsPanel.fxml
@@ -14,35 +14,40 @@
 <BorderPane fx:id="root_container" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="500.0" prefWidth="900.0" stylesheets="@../style/graphics_controller.css" xmlns="http://javafx.com/javafx/8.0.111" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.ericcanull.fxbinarytree.controller.GraphicsController">
    <bottom>
       <HBox alignment="CENTER" spacing="5.0" BorderPane.alignment="CENTER">
-         <children>
-            <TextField fx:id="input_field" prefColumnCount="6" prefHeight="25.0" promptText="Key" />
-            <Button layoutX="227.0" layoutY="10.0" mnemonicParsing="false" onAction="#insertOnAction" prefHeight="35.0" prefWidth="90.0" styleClass="control-button" text="Insert" />
-            <Button mnemonicParsing="false" onAction="#searchOnAction" prefHeight="35.0" prefWidth="90.0" styleClass="control-button" text="Search" />
-            <Button layoutX="217.0" layoutY="10.0" mnemonicParsing="false" onAction="#deleteOnAction" prefHeight="35.0" prefWidth="90.0" styleClass="control-button" text="Delete" />
-            <Button layoutX="217.0" layoutY="10.0" mnemonicParsing="false" onAction="#clearOnAction" prefHeight="35.0" prefWidth="90.0" styleClass="control-button" text="Clear" />
-            <Button layoutX="211.0" layoutY="10.0" mnemonicParsing="false" onAction="#inorderOnAction" prefHeight="35.0" prefWidth="90.0" styleClass="control-button" text="Inorder" />
-            <Button layoutX="169.0" layoutY="10.0" mnemonicParsing="false" onAction="#preorderOnAction" prefHeight="35.0" prefWidth="90.0" styleClass="control-button" text="Preorder" />
-            <Button layoutX="151.0" layoutY="10.0" mnemonicParsing="false" onAction="#postorderOnAction" prefHeight="35.0" prefWidth="90.0" styleClass="control-button" text="Postorder" />
-         </children>
          <padding>
-            <Insets bottom="3.0" />
-         </padding></HBox>
+            <Insets bottom="3.0"/>
+         </padding>
+         <TextField fx:id="input_field" prefColumnCount="6" prefHeight="25.0" promptText="Key"/>
+         <Button layoutX="227.0" layoutY="10.0" mnemonicParsing="false" onAction="#insertOnAction" prefHeight="35.0"
+                 prefWidth="90.0"  text="Insert"/>
+         <Button mnemonicParsing="false" onAction="#searchOnAction" prefHeight="35.0" prefWidth="90.0"
+                  text="Search"/>
+         <Button layoutX="217.0" layoutY="10.0" mnemonicParsing="false" onAction="#deleteOnAction" prefHeight="35.0"
+                 prefWidth="90.0"  text="Delete"/>
+         <Button layoutX="217.0" layoutY="10.0" mnemonicParsing="false" onAction="#clearOnAction" prefHeight="35.0"
+                 prefWidth="90.0"  text="Clear"/>
+         <Button layoutX="211.0" layoutY="10.0" mnemonicParsing="false" onAction="#inorderOnAction" prefHeight="35.0"
+                 prefWidth="90.0"  text="Inorder"/>
+         <Button layoutX="169.0" layoutY="10.0" mnemonicParsing="false" onAction="#preorderOnAction" prefHeight="35.0"
+                 prefWidth="90.0"  text="Preorder"/>
+         <Button layoutX="151.0" layoutY="10.0" mnemonicParsing="false" onAction="#postorderOnAction" prefHeight="35.0"
+                 prefWidth="90.0"  text="Postorder"/>
+      </HBox>
    </bottom>
    <top>
       <GridPane alignment="CENTER_LEFT">
          <columnConstraints>
-            <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" />
+            <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0"/>
          </columnConstraints>
          <rowConstraints>
-            <RowConstraints maxHeight="-Infinity" minHeight="-Infinity" prefHeight="25.0" vgrow="NEVER" />
+            <RowConstraints maxHeight="-Infinity" minHeight="-Infinity" prefHeight="25.0" vgrow="NEVER"/>
          </rowConstraints>
-         <children>
-            <AnchorPane GridPane.hgrow="ALWAYS" GridPane.valignment="CENTER" GridPane.vgrow="NEVER">
-               <children>
-                  <TextArea fx:id="traversal_textarea" editable="false" maxHeight="-Infinity" maxWidth="1.7976931348623157E308" minHeight="-Infinity" prefHeight="20.0" prefRowCount="1" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0" />
-               </children>
-            </AnchorPane>
-         </children>
+         <AnchorPane GridPane.hgrow="ALWAYS" GridPane.valignment="CENTER" GridPane.vgrow="NEVER">
+            <TextArea fx:id="traversal_textarea" editable="false" maxHeight="-Infinity"
+                      maxWidth="1.7976931348623157E308" minHeight="-Infinity" prefHeight="20.0" prefRowCount="1"
+                      AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0"
+                      AnchorPane.topAnchor="0.0"/>
+         </AnchorPane>
       </GridPane>
    </top>
 </BorderPane>
diff --git a/target/classes/com/ericcanull/fxbinarytree/shape/Line.class b/target/classes/com/ericcanull/fxbinarytree/shape/Line.class
index b365cf276341577b62ff936e34c20df2ad8d113f..754dabba1d48bfeae84127f4d7bffd4d3f515c3b 100644
GIT binary patch
delta 105
zcmdlcv`uJ34x6AB0}F#T11EzH10RDfgD8XE<XX0BUNZ)E21^Eh1}g@A2J6YJ>~4%s
zlYQ8oIK3EH8N3;|7<?vAXAfWunf!v?mp2w@LL5+c0#J9-WG9YX&Kw3IhFk_khMdVe
GIO+h@`4iFr

delta 105
zcmdlcv`uJ34x6AR0}F!|11Ezv10RD9gD8XU<XX0BUQ-5k1`7s$21^Eg2CK=e>~4&X
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GIO+h<8WXhu

diff --git a/target/classes/com/ericcanull/fxbinarytree/tree/BinarySearchTree.class b/target/classes/com/ericcanull/fxbinarytree/tree/BinarySearchTree.class
index a5deb1d83a2b12714713aaa2e7e232059d8cd59e..346f7de7c3bba78de677a23567a227e2fd5a08f7 100644
GIT binary patch
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zt}uoO&l!d1D0|VXj5`t3XcLmVayc&e$)LiY;YzAg)UU$b8-&=y5F7Fj`|@4l{{ai(
zUQ8y1$Y(+M6nQ40>9ou51m(x%miXD<@IzXH)Cb_%+k$H*pY2R9@Dn=wDV^QNKKv}^
zaDU`*|7M38JZ65&Y*@!jn>)@gsDfX{j5bF`o0U=Nbah+bR3r_SKfv*FGHf<IA0Q`S
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zFb0>I+?SUz$j>AN*ia02vJRV)w^R%-s~BFsi%Y31w<3<ig#MX<{DuALuQ7+6k;6{;
vA2Y41gv$KpCz5h^IZ9~U-DTzO@|CU5{y}H|q_cm;oW+y5#n~#OO~C&zvgMI@

literal 4419
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ztvQA7)`sz@2<&gbV$G#%QDf*(NIx_S3AAIYkg!eRd$qk^L&63;+Q3qgLOVJQd;>d3
zt>n}vT_IBwW{qzN?8GB6bQ$;-b}6K4krCdgV9Z*suc~v_4TX+Wdibh&-OLqDXErzF
zxYn#yrfwd^V=?S8uoo$XP2P%%YZr6ROkK6|uBh93xndUivNsh1@IUvipGjX%AcJfS
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TZwW$a!7JVwt*}U#I^6gYZ>;4z

diff --git a/target/classes/com/ericcanull/fxbinarytree/tree/BinaryTreeBasis.class b/target/classes/com/ericcanull/fxbinarytree/tree/BinaryTreeBasis.class
index 5f91773a6533481f1515990c096d8b95906b4633..78e6b7debb916f01b566f5967b917ecd87662a8e 100644
GIT binary patch
delta 236
zcmZ3%)y2tm>ff$?3=9mm44M<U?oSS8(wm&i_-t}B)7r^)%%+U2lS`QWr3D!n86<&<
zd>L36n1HmP)^-L)t=$Z~k=m0VFpFtR1I1++1Q=u)q=B+x5H&y%Ss)Lnnn8|19%uq1
zg93x%WJMMoB^9tb9-s&V120sa5|GWxz{KqUQm8yRpG93(8z`WIq?8S+l#xM&L3Q$G
q7E?|W26hHhpam9_Ke7nRfQ(>fU=(Cf12R~E#s~qiI*`r8paB5Pavcu<

delta 329
zcmYk0yGjF56h-$rGtR_G#*hR8K5o?L<S~=jMX?ZqomId>u(3-iQJg=pi<R7;NGB;I
zV89RX53KY*1aU_rOmWX+v(Dm<S0_R6_Wkk--~`EI@S*oDd!xqYBxFw(FW0{CQ4t*2
zTaE0g%(eT^6z!Kh74mn(^n5f*&(h(wo#>Hx_EQH}H3-%z9>9aLSK=8Yo+G?WL}n;H
z!=Ex%Y_P7uVcmiYgEDH^<W~JVV`{ijfNkthD%eHcJ~*9v^ve~P0O69`<GcdR_ZQ&4
xeRrCs!=Rf%y(KD$(6Gks^?UGfh!T!7R5c@XASE<ub}22pf)@V>&TUpj`~#ijD;@v<

diff --git a/target/classes/com/ericcanull/fxbinarytree/tree/QueueException.class b/target/classes/com/ericcanull/fxbinarytree/tree/QueueException.class
index 448fe6ca57dba4fed7070055411c6a465d9b9dd8..1a3eca82b9c1fb11f10714d34a4442aca1620649 100644
GIT binary patch
delta 17
YcmbQvJe_$%4kIfs11kgH<U&R@046O1q5uE@

delta 17
YcmbQvJe_$%4kIfc11kgn<U&R@046&FqyPW_

diff --git a/target/classes/com/ericcanull/fxbinarytree/tree/TreeException.class b/target/classes/com/ericcanull/fxbinarytree/tree/TreeException.class
index a58c8c36f5697743ddeb9b804ef65572defc865c..71272d502eae52b0032d499f4c557b5bfdebd420 100644
GIT binary patch
delta 17
YcmbQjJcW5fCL=2^11kgH<UB?-041OUmH+?%

delta 17
YcmbQjJcW5fCL=2!11kgn<UB?-041&im;e9(

diff --git a/target/classes/com/ericcanull/fxbinarytree/tree/TreeIterator.class b/target/classes/com/ericcanull/fxbinarytree/tree/TreeIterator.class
index 768481fed4f6336a1571e11e1f6af3d564e334a8..85b4f257b31aa97488d68cf41f4c6a27318a125f 100644
GIT binary patch
delta 30
kcmbO#I#qOo7Mq|D12+Q?0|NsS13!ZRkQUl(%@)N107%*c^Z)<=

delta 30
jcmbO#I#qOo7Mmaw12+Q?0|NsS13!ZRh~8|?7R3SpM;Zgv

diff --git a/target/classes/com/ericcanull/fxbinarytree/tree/TreeNode.class b/target/classes/com/ericcanull/fxbinarytree/tree/TreeNode.class
index 9198b8318d67a00a5ffce976b07fbdeb685bdc02..12f0c64168097a6f49910d74c0826e6ad9c50ac8 100644
GIT binary patch
delta 83
zcmZ3=x|?N#JR_s-WCcd;$qN~KStA&j7?>s-GpU=4GO#d+F>o@7Gw?A;FbFe90wDuX
cgb7HBFi0^70BI15n}LUc5eTJ$JSGMi00UqM1^@s6

delta 139
zcmdnZvXpg$JR@WCWCcd;$%>4!d?iJxsrn&6!Y@B1)fyzkgDf=Jld+#Qhk=QKW%6A{
zb#HM776u6hP6kN^J_acUVFqa+i-AE4D9XSf0u&Jd(jXQ$0}lfun8gniV*;~;fh=aA
Ls5Fqr#2^CzN_-UN