Java实现个人数据管理方法

public class Person {
    private String name;
    private int age;
    private String phone;
    private String email;
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.List;
public class PersonManager {
private List persons;
public PersonManager() {
    persons = new ArrayList<>();
}

// 添加人员
public void addPerson(Person person) {
    persons.add(person);
    System.out.println("已添加：" + person.getName());
}

// 根据姓名查找
public Person findPersonByName(String name) {
    for (Person p : persons) {
        if (p.getName().equals(name)) {
            return p;
        }
    }
    return null;
}

// 显示所有人员
public void displayAll() {
    if (persons.isEmpty()) {
        System.out.println("暂无数据");
    } else {
        for (Person p : persons) {
            System.out.println(p);
        }
    }
}

// 删除人员
public boolean removePerson(String name) {
    Person p = findPersonByName(name);
    if (p != null) {
        persons.remove(p);
        System.out.println("已删除：" + name);
        return true;
    }
    System.out.println("未找到：" + name);
    return false;
}
}

import java.util.Scanner;
public class Main {
public static void main(String[] args) {
PersonManager manager = new PersonManager();
Scanner scanner = new Scanner(System.in);
boolean running = true;
    while (running) {
        System.out.println("\n--- 个人信息管理系统 ---");
        System.out.println("1. 添加人员");
        System.out.println("2. 查找人员");
        System.out.println("3. 删除人员");
        System.out.println("4. 显示所有");
        System.out.println("5. 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("姓名："); String name = scanner.nextLine();
                System.out.print("年龄："); int age = Integer.parseInt(scanner.nextLine());
                System.out.print("电话："); String phone = scanner.nextLine();
                System.out.print("邮箱："); String email = scanner.nextLine();
                manager.addPerson(new Person(name, age, phone, email));
                break;

            case 2:
                System.out.print("输入要查找的姓名：");
                String searchName = scanner.nextLine();
                Person found = manager.findPersonByName(searchName);
                if (found != null) {
                    System.out.println("找到：" + found);
                } else {
                    System.out.println("未找到该人员");
                }
                break;

            case 3:
                System.out.print("输入要删除的姓名：");
                String delName = scanner.nextLine();
                manager.removePerson(delName);
                break;

            case 4:
                manager.displayAll();
                break;

            case 5:
                System.out.println("退出系统");
                running = false;
                break;

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