上传文件至 'W2'

W2/Student.java

@@ -0,0 +1,39 @@
+// 1. 定义 Student 类
+class Student {
+    private String studentId;
+    private String name;
+    private double score;
+    public Student(String studentId, String name, double score) {
+        this.studentId = studentId;
+        this.name = name;
+        this.score = score;
+    }
+
+    public void study() {
+        System.out.println("学生 " + name + " (学号: " + studentId + ") 正在努力学习！");
+        System.out.println("他/她的当前分数是: " + score);
+    }
+
+    public String getStudentId() { return studentId; }
+    public String getName() { return name; }
+    public double getScore() { return score; }
+
+    public void setScore(double score) { this.score = score; }
+}
+
+public class StudentPractice {
+    public static void main(String[] args) {
+        Student student1 = new Student("S001", "张三", 88.5);
+        Student student2 = new Student("S002", "李四", 92.0);
+
+        System.out.println("--- 第一个学生的学习情况 ---");
+        student1.study();
+
+        System.out.println("\n--- 第二个学生的学习情况 ---");
+        student2.study();
+
+        System.out.println("\n--- 李四经过努力后 ---");
+        student2.setScore(95.0);
+        student2.study();
+    }
+}