Olena/Member Directory Command Line Tool/CSV

course-info.yaml

@@ -24,4 +24,8 @@ additional_files:
   - name: docs/HOW_TO_SUBMIT.md
   - name: docs/PROJECT_IDEAS.md
   - name: docs/guides/numeric-literals-simplified.md
+  - name: participants/olena/project-1/src/main/java/com/wcc/platform/model/Member.java
+  - name: participants/olena/project-1/src/main/java/com/wcc/platform/model/MemberRepository.java
+  - name: src/main/java/com/wcc/bootcamp/java/Main.java
+  - name: participants/olena/project-1/src/main/java/com/wcc/platform/model/CsvMemberRepository.java
 yaml_version: 5

participants/olena/project-1/build.gradle

@@ -12,4 +12,7 @@ repositories {
 application {
     mainClass = 'com.wcc.platform.Main'
 }
+tasks.named('run') {
+    standardInput = System.in
+}
 

participants/olena/project-1/members.csv

@@ -0,0 +1,2 @@
+name,email,location,joinDate
+Ned,ned@gmail.com,London,2026-02-27

participants/olena/project-1/src/main/java/com/wcc/platform/Main.java

@@ -1,9 +1,48 @@
 package com.wcc.platform;
 
 
-public class Main {
-    public static void main(String[] args) {
-        System.out.println("WCC Member Directory started...");
+import com.wcc.platform.model.Member;
+import com.wcc.platform.model.MemberRepository;
+import com.wcc.platform.model.CsvMemberRepository;
+
+import java.io.IOException;
+import java.time.LocalDate;
+import java.util.List;
+import java.util.Scanner;
+
+
+public class Main  {
+    private static final Scanner scanner = new Scanner(System.in);
+    private static final MemberRepository repository = new CsvMemberRepository();
+
+
+    public static void main(String[] args) throws IOException {
+        repository.loadFromCsv("members.csv");
+
+
+        System.out.println("Enter name: ");
+        String name = scanner.nextLine();
+
+        System.out.println("Enter email: ");
+        String email = scanner.nextLine();
+
+        System.out.println("Enter location: ");
+        String location = scanner.nextLine();
+
+        Member member = new Member(
+                name,
+                email,
+                location,
+                List.of(),
+                LocalDate.now()
+        );
+        repository.add(member);
+        repository.saveToCsv("members.csv");
+        System.out.println("Member added.");
+        viewMembers();
+    }
+    public static void viewMembers() {
+        repository.findAll().forEach(System.out::println);
     }
 }
 

participants/olena/project-1/src/main/java/com/wcc/platform/model/CsvMemberRepository.java

@@ -0,0 +1,75 @@
+package com.wcc.platform.model;
+
+import java.io.*;
+import java.time.LocalDate;
+import java.util.ArrayList;
+import java.util.List;
+
+
+public class CsvMemberRepository implements MemberRepository {
+
+    private final List<Member> members = new ArrayList<>();
+
+    public void add(Member member) {
+        members.add(member);
+    }
+
+    public List<Member> findAll() {
+        return members;
+    }
+
+    public void saveToCsv(String filePath) throws IOException {
+
+        File file = new File(filePath);
+        boolean fileExists = file.exists();
+        boolean fileEmpty = !fileExists || file.length() == 0;
+
+        FileWriter writer = new FileWriter(file);
+
+        if(fileEmpty) {
+            writer.write(String.format("name,email,location,joinDate%n"));
+        }
+
+        for (Member member : members) {
+            writer.write(String.format("%s,%s,%s,%s%n",
+                    member.getName(),
+                    member.getEmail(),
+                    member.getLocation(),
+                    member.getJoinDate()
+            ));
+        }
+        writer.close();
+    }
+
+    public void loadFromCsv(String filePath) throws IOException {
+        File file = new File(filePath);
+        if(!file.exists()){
+            return;
+        }
+
+        BufferedReader reader = new BufferedReader(new FileReader(filePath));
+
+        String line;
+
+        reader.readLine();
+
+        while ((line = reader.readLine()) != null) {
+            String[] parts = line.split(",");
+            String name = parts[0].trim();
+            String email = parts[1].trim();
+            String location = parts[2].trim();
+            LocalDate joinDate = LocalDate.parse(parts[3].trim());
+
+            Member member = new Member(
+                    name,
+                    email,
+                    location,
+                    List.of(),
+                    joinDate
+            );
+            members.add(member);
+        }
+        reader.close();
+    }
+}
+

participants/olena/project-1/src/main/java/com/wcc/platform/model/Member.java

@@ -0,0 +1,56 @@
+package com.wcc.platform.model;
+
+import java.time.LocalDate;
+import java.util.List;
+
+public class Member {
+    private final String name;
+    private final String email;
+    private final String location;
+    private final List<String> skills;
+    private final LocalDate joinDate;
+
+
+    public Member(
+            String name,
+            String email,
+            String location,
+            List<String> skills,
+            LocalDate joinDate
+            ) {
+        this.name = name;
+        this.email = email;
+        this.location = location;
+        this.skills = skills;
+        this.joinDate = joinDate;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public String getEmail() {
+        return email;
+    }
+
+    public String getLocation() {
+        return location;
+    }
+
+    public List<String> getSkills() {
+        return skills;
+    }
+
+    public LocalDate getJoinDate() {
+        return joinDate;
+    }
+
+    @Override
+    public String toString() {
+        return String.format("%s  %s  %s", name, email, location);
+    }
+}
+
+
+
+

participants/olena/project-1/src/main/java/com/wcc/platform/model/MemberRepository.java

@@ -0,0 +1,15 @@
+package com.wcc.platform.model;
+
+import java.io.IOException;
+import java.util.List;
+
+public interface MemberRepository {
+
+    void add(Member member);
+
+    List<Member> findAll();
+
+    void saveToCsv(String filePath) throws IOException;
+
+    void loadFromCsv(String filePath) throws IOException;
+}

src/main/java/com/wcc/bootcamp/java/Task.java → src/main/java/com/wcc/bootcamp/java/Main.java

@@ -1,7 +1,9 @@
+package com.wcc.bootcamp.java;
+
 public class Main {
     public static void main(String[] args) {
         String greetings = "Hello World";
-        System.out.println(greeting);
+        System.out.println(greetings);
     }
 }