Delete 'Student.java'

Student.java

@@ -1,68 +0,0 @@
-package basic;
-
-/**
- * 学生类，添加成绩属性并实现学生与成绩的一对多关联关系
- */
-public class Student {
-    private int id;
-    private String name;
-    private advanced.Parent parent;
-    
-    // 学生的所有成绩（一对多关系）
-    private java.util.List<Grade> grades;
-    
-    public Student(int id, String name) {
-        this.id = id;
-        this.name = name;
-        this.grades = new java.util.ArrayList<>();
-    }
-    
-    // 添加成绩
-    public void addGrade(Grade grade) {
-        grades.add(grade);
-    }
-    
-    // 移除成绩
-    public void removeGrade(Grade grade) {
-        grades.remove(grade);
-    }
-    
-    // Getters and Setters
-    public int getId() {
-        return id;
-    }
-    
-    public void setId(int id) {
-        this.id = id;
-    }
-    
-    public String getName() {
-        return name;
-    }
-    
-    public void setName(String name) {
-        this.name = name;
-    }
-    
-    public java.util.List<Grade> getGrades() {
-        return new java.util.ArrayList<>(grades);
-    }
-    
-    public advanced.Parent getParent() {
-        return parent;
-    }
-    
-    public void setParent(advanced.Parent parent) {
-        this.parent = parent;
-    }
-    
-    @Override
-    public String toString() {
-        return "Student{" +
-                "id=" + id +
-                ", name='" + name + '\'' +
-                ", parent=" + (parent != null ? parent.getName() : "null") +
-                ", grades.size()=" + grades.size() +
-                '}';
-    }
-}