// Student.java
public class Student {
// 成员属性
private int studentId;
private String name;
private double score;

    // 构造方法（用于创建对象时给属性赋值）
    public Student(int studentId, String name, double score) {
        this.studentId = studentId;
        this.name = name;
        this.score = score;
    }

    // study() 方法
    public void study() {
        System.out.println(name + "（学号：" + studentId + "）正在学习，当前成绩：" + score);
    }

    // 可选：getter/setter 方法（用于访问/修改私有属性）
    public int getStudentId() {
        return studentId;
    }

    public String getName() {
        return name;
    }

    public double getScore() {
        return score;
    }
}

public class Main {
public static void main(String[] args) {
// 实例化两个 Student 对象
Student stu1 = new Student(2026001, "张三", 90.5);
Student stu2 = new Student(2026002, "李四", 88.0);

        // 调用 study() 方法
        stu1.study();
        stu2.study();
    }
}