Lesson_7

proJect/src/main/java/anlov/java/Array.java

@@ -0,0 +1,47 @@
+package anlov.java;
+
+public class Array {
+
+    private static int sumArray;
+    private final static int ARRAYSIZE = 4;
+
+    private Array() {
+    }
+
+    public static int getSumArray(String[][] array) throws MyArraySizeException, MyArrayDataException {
+        checkArraySize(array);
+
+        for (int i = 0; i < ARRAYSIZE; i++) {
+            for (int j = 0; j < ARRAYSIZE; j++) {
+                if (!isInt(array[i][j])) {
+                    throw new MyArrayDataException("Введенное значение, не является числом", i, j);
+                }
+                sumArray += Integer.parseInt(array[i][j]);
+            }
+        }
+        return sumArray;
+    }
+
+    private static void checkArraySize(String[][] array) throws MyArraySizeException {
+        int rowArray = array.length;
+        int columnArray = array[0].length;
+
+        if (rowArray > ARRAYSIZE || columnArray > ARRAYSIZE) {
+            throw new MyArraySizeException("Массив выходит за границы допустимого, попробуйте ввести масси 4х4",
+                    rowArray, columnArray);
+        }
+        if (rowArray < ARRAYSIZE || columnArray < ARRAYSIZE) {
+            throw new MyArraySizeException("Размер массива меньше допустимого, попробуйте ввести массив 4х4",
+                    rowArray, columnArray);
+        }
+    }
+
+    private static boolean isInt(String convert) {
+        try {
+            Integer.parseInt(convert);
+            return true;
+        } catch (NumberFormatException notInt) {
+            return false;
+        }
+    }
+}

proJect/src/main/java/anlov/java/Main.java

@@ -1,9 +1,18 @@
 package anlov.java;
 
 
-import java.util.Arrays;
-
 public class Main {
     public static void main(String[] args) {
+        String[][] array = {{"1", "2", "3", "4"}, {"5", "6", "7", "8"},
+                {"9", "15", "11", "12"}, {"13", "14", "15", "16"}};
+
+        try {
+            System.out.println(Array.getSumArray(array));
+        } catch (MyArraySizeException size) {
+            System.out.println(size.getMessage() + ", введенный массив имеет размер " + size.getArraySize());
+        } catch (MyArrayDataException data) {
+            System.out.println(data.getMessage() + " " + data.getArrayIndex());
+        }
+
     }
 }

proJect/src/main/java/anlov/java/MyArrayDataException.java

@@ -0,0 +1,17 @@
+package anlov.java;
+
+
+public class MyArrayDataException extends Exception {
+    private final int rowArrayIndex;
+    private final int columnArrayIndex;
+
+    public MyArrayDataException(String info, int rowArrayIndex, int columnArrayIndex) {
+        super(info);
+        this.rowArrayIndex = rowArrayIndex;
+        this.columnArrayIndex = columnArrayIndex;
+    }
+
+    public String getArrayIndex() {
+        return "[" + rowArrayIndex + "]" + "[" + columnArrayIndex + "]";
+    }
+}

proJect/src/main/java/anlov/java/MyArraySizeException.java

@@ -0,0 +1,17 @@
+package anlov.java;
+
+public class MyArraySizeException extends Exception {
+
+    private final int rowArray;
+    private final int columnArray;
+
+    public MyArraySizeException(String info, int rowArray, int columnArray) {
+        super(info);
+        this.rowArray = rowArray;
+        this.columnArray = columnArray;
+    }
+
+    public String getArraySize() {
+        return rowArray + "x" + columnArray;
+    }
+}