在Java集合中使用类对象及其属性

public class Student {
    private String name;
    private int age;
    private String studentId;

    // 构造方法
    public Student(String name, int age, String studentId) {
        this.name = name;
        this.age = age;
        this.studentId = studentId;
    }

    // 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 getStudentId() {
        return studentId;
    }

    public void setStudentId(String studentId) {
        this.studentId = studentId;
    }
}

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

public class Main {
    public static void main(String[] args) {
        // 创建一个List集合
        List<Student> studentList = new ArrayList<>();

        // 创建Student对象并添加到集合中
        Student student1 = new Student("张三", 20, "20210001");
        studentList.add(student1);

        Student student2 = new Student("李四", 21, "20210002");
        studentList.add(student2);

        // 遍历集合并输出学生信息
        for (Student student : studentList) {
            System.out.println("姓名：" + student.getName());
            System.out.println("年龄：" + student.getAge());
            System.out.println("学号：" + student.getStudentId());
            System.out.println("--------------------");
        }
    }
}