Java中如何写一个简易的个人信息管理软件

public class Person {
    private String name;
    private int age;
    private String phone;
    private String email;
<pre class='brush:java;toolbar:false;'>public Person(String name, int age, String phone, String email) {
    this.name = name;
    this.age = age;
    this.phone = phone;
    this.email = email;
}

// Getter 和 Setter 方法
public String getName() { return name; }
public void setName(String name) { this.name = name; }

public int getAge() { return age; }
public void setAge(int age) { this.age = age; }

public String getPhone() { return phone; }
public void setPhone(String phone) { this.phone = phone; }

public String getEmail() { return email; }
public void setEmail(String email) { this.email = email; }

@Override
public String toString() {
    return "姓名：" + name + "，年龄：" + age + "，电话：" + phone + "，邮箱：" + email;
}

import java.util.ArrayList;
import java.util.Scanner;
<p>public class PersonManager {
private ArrayList<Person> persons;
private Scanner scanner;</p><pre class='brush:java;toolbar:false;'>public PersonManager() {
    persons = new ArrayList<>();
    scanner = new Scanner(System.in);
}

// 添加人员
public void addPerson() {
    System.out.print("请输入姓名：");
    String name = scanner.nextLine();
    System.out.print("请输入年龄：");
    int age = Integer.parseInt(scanner.nextLine());
    System.out.print("请输入电话：");
    String phone = scanner.nextLine();
    System.out.print("请输入邮箱：");
    String email = scanner.nextLine();

    persons.add(new Person(name, age, phone, email));
    System.out.println("添加成功！");
}

// 显示所有人员
public void listAllPersons() {
    if (persons.isEmpty()) {
        System.out.println("暂无数据。");
    } else {
        for (int i = 0; i < persons.size(); i++) {
            System.out.println((i + 1) + ". " + persons.get(i));
        }
    }
}

// 根据姓名查找索引
private int findIndexByName(String name) {
    for (int i = 0; i < persons.size(); i++) {
        if (persons.get(i).getName().equals(name)) {
            return i;
        }
    }
    return -1;
}

// 查询人员
public void searchPerson() {
    System.out.print("请输入要查询的姓名：");
    String name = scanner.nextLine();
    int index = findIndexByName(name);
    if (index != -1) {
        System.out.println("找到信息：" + persons.get(index));
    } else {
        System.out.println("未找到该人员。");
    }
}

// 修改人员信息
public void updatePerson() {
    System.out.print("请输入要修改的姓名：");
    String name = scanner.nextLine();
    int index = findIndexByName(name);
    if (index != -1) {
        Person p = persons.get(index);
        System.out.print("新年龄（当前：" + p.getAge() + "）：");
        String input = scanner.nextLine();
        if (!input.isEmpty()) {
            p.setAge(Integer.parseInt(input));
        }

        System.out.print("新电话（当前：" + p.getPhone() + "）：");
        input = scanner.nextLine();
        if (!input.isEmpty()) {
            p.setPhone(input);
        }

        System.out.print("新邮箱（当前：" + p.getEmail() + "）：");
        input = scanner.nextLine();
        if (!input.isEmpty()) {
            p.setEmail(input);
        }

        System.out.println("修改成功！");
    } else {
        System.out.println("未找到该人员。");
    }
}

// 删除人员
public void deletePerson() {
    System.out.print("请输入要删除的姓名：");
    String name = scanner.nextLine();
    int index = findIndexByName(name);
    if (index != -1) {
        persons.remove(index);
        System.out.println("删除成功！");
    } else {
        System.out.println("未找到该人员。");
    }
}

// 主菜单
public void showMenu() {
    while (true) {
        System.out.println("\n--- 个人信息管理系统 ---");
        System.out.println("1. 添加人员");
        System.out.println("2. 查看所有人员");
        System.out.println("3. 查询人员");
        System.out.println("4. 修改人员");
        System.out.println("5. 删除人员");
        System.out.println("6. 退出");
        System.out.print("请选择操作：");

        String choice = scanner.nextLine();

        switch (choice) {
            case "1" -> addPerson();
            case "2" -> listAllPersons();
            case "3" -> searchPerson();
            case "4" -> updatePerson();
            case "5" -> deletePerson();
            case "6" -> {
                System.out.println("再见！");
                return;
            }
            default -> System.out.println("无效选择，请重试。");
        }
    }
}

public class Main {
    public static void main(String[] args) {
        PersonManager manager = new PersonManager();
        manager.showMenu();
    }
}