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() +
                '}';
    }
}