如何用Java开发任务管理工具实现添加删除功能

public class Task {
    private String title;
    private String description;
    private boolean completed;
<pre class='brush:java;toolbar:false;'>public Task(String title, String description) {
    this.title = title;
    this.description = description;
    this.completed = false;
}

// Getter 和 Setter 方法
public String getTitle() {
    return title;
}

public String getDescription() {
    return description;
}

public boolean isCompleted() {
    return completed;
}

public void setCompleted(boolean completed) {
    this.completed = completed;
}

@Override
public String toString() {
    return "任务: " + title + " | 描述: " + description + " | 状态: " + (completed ? "已完成" : "未完成");
}

import java.util.ArrayList;
import java.util.List;
<p>public class TaskManager {
private List<Task> tasks;</p><pre class='brush:java;toolbar:false;'>public TaskManager() {
    tasks = new ArrayList<>();
}

// 添加任务
public void addTask(Task task) {
    tasks.add(task);
    System.out.println("任务已添加: " + task.getTitle());
}

// 删除任务（根据任务标题）
public boolean removeTask(String title) {
    Task toRemove = null;
    for (Task task : tasks) {
        if (task.getTitle().equals(title)) {
            toRemove = task;
            break;
        }
    }
    if (toRemove != null) {
        tasks.remove(toRemove);
        System.out.println("任务已删除: " + title);
        return true;
    } else {
        System.out.println("未找到任务: " + title);
        return false;
    }
}

// 查看所有任务
public void listTasks() {
    if (tasks.isEmpty()) {
        System.out.println("暂无任务。");
    } else {
        System.out.println("\n当前任务列表：");
        for (int i = 0; i < tasks.size(); i++) {
            System.out.println((i + 1) + ". " + tasks.get(i));
        }
    }
}

import java.util.Scanner;
<p>public class Main {
public static void main(String[] args) {
TaskManager manager = new TaskManager();
Scanner scanner = new Scanner(System.in);
boolean running = true;</p><pre class='brush:java;toolbar:false;'>    while (running) {
        System.out.println("\n--- 任务管理工具 ---");
        System.out.println("1. 添加任务");
        System.out.println("2. 删除任务");
        System.out.println("3. 查看所有任务");
        System.out.println("4. 退出");
        System.out.print("请选择操作: ");

        int choice = scanner.nextInt();
        scanner.nextLine(); // 消费换行符

        switch (choice) {
            case 1:
                System.out.print("输入任务标题: ");
                String title = scanner.nextLine();
                System.out.print("输入任务描述: ");
                String desc = scanner.nextLine();
                Task newTask = new Task(title, desc);
                manager.addTask(newTask);
                break;

            case 2:
                System.out.print("输入要删除的任务标题: ");
                String removeTitle = scanner.nextLine();
                manager.removeTask(removeTitle);
                break;

            case 3:
                manager.listTasks();
                break;

            case 4:
                System.out.println("退出程序。");
                running = false;
                break;

            default:
                System.out.println("无效选择，请重试。");
        }
    }
    scanner.close();
}

--- 任务管理工具 ---
1. 添加任务
2. 删除任务
3. 查看所有任务
4. 退出
请选择操作: 1
输入任务标题: 学习Java
输入任务描述: 完成任务管理系统练习
任务已添加: 学习Java