java/挑战题

import java.util.ArrayList;
import java.util.List;

// 父类 Person
class Person {
    private String name;
    private int age;

    public Person() {}
    public Person(String name, int age) {
        this.name = name;
        this.age = age;
    }

    public void showInfo() {
        System.out.println("姓名：" + name + "，年龄：" + age);
    }

    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;
    }
}

// 学生子类
class Student extends Person {
    private String stuId;
    private String major;

    public Student() {}
    public Student(String name, int age, String stuId, String major) {
        super(name, age);
        this.stuId = stuId;
        this.major = major;
    }

    @Override
    public void showInfo() {
        super.showInfo();
        System.out.println("身份：学生，学号：" + stuId + "，专业：" + major);
    }

    public String getStuId() {
        return stuId;
    }
    public void setStuId(String stuId) {
        this.stuId = stuId;
    }
    public String getMajor() {
        return major;
    }
    public void setMajor(String major) {
        this.major = major;
    }
}

// 教师子类
class Teacher extends Person {
    private String teaId;
    private String dept;

    public Teacher() {}
    public Teacher(String name, int age, String teaId, String dept) {
        super(name, age);
        this.teaId = teaId;
        this.dept = dept;
    }

    @Override
    public void showInfo() {
        super.showInfo();
        System.out.println("身份：教师，工号：" + teaId + "，院系：" + dept);
    }

    public String getTeaId() {
        return teaId;
    }
    public void setTeaId(String teaId) {
        this.teaId = teaId;
    }
    public String getDept() {
        return dept;
    }
    public void setDept(String dept) {
        this.dept = dept;
    }
}

// 管理类
class PersonManager {
    private List<Person> list = new ArrayList<>();

    // 统一添加方法，合并addStudent、addTeacher
    public void addPerson(Person p) {
        list.add(p);
    }

    // 遍历展示所有人信息
    public void showAll() {
        for(Person p : list){
            p.showInfo();
            System.out.println("--------------------");
        }
    }
}

// 主测试类
public class PersonTest {
    public static void main(String[] args) {
        PersonManager manager = new PersonManager();

        // 创建学生、教师对象
        Student s1 = new Student("张三", 19, "2025001", "大数据管理");
        Teacher t1 = new Teacher("王老师", 38, "T10086", "计算机学院");

        // 统一添加
        manager.addPerson(s1);
        manager.addPerson(t1);

        // 展示所有信息
        manager.showAll();
    }
}