Java 练习一 - -老师类 Teacher --名字 --性别 --年龄 --学科 方法：指导学生学习方法teachStu，效果要求【哪位老师再指导哪位学生什么课程的内容】 --学生类 Student --学号 --姓名 --性别 --年龄 --班主任【老师类】 方法：给班主任反馈个人信息reportMess，效果要求【输出当前xxx同学给xxx班主任，反馈个人学号-年龄信息】 --测试类： 王老师给小明指导数学 隔壁小李给xxx班主任反馈个人信息

下面是 Java 的代码实现：

// 老师类
public class Teacher {
    private String name;
    private String gender;
    private int age;
    private String subject;

    public Teacher(String name, String gender, int age, String subject) {
        this.name = name;
        this.gender = gender;
        this.age = age;
        this.subject = subject;
    }

    public void teachStu(Student student) {
        System.out.println(this.name + "老师正在指导" + student.getName() + "同学学习" + this.subject);
    }
}

// 学生类
public class Student {
    private String id;
    private String name;
    private String gender;
    private int age;
    private Teacher teacher;

    public Student(String id, String name, String gender, int age, Teacher teacher) {
        this.id = id;
        this.name = name;
        this.gender = gender;
        this.age = age;
        this.teacher = teacher;
    }

    public void reportMess() {
        System.out.println("当前" + this.name + "同学给" + this.teacher.getName() + "班主任，反馈个人" + this.id + "-" + this.age + "信息");
    }

    public String getName() {
        return this.name;
    }
}

// 测试类
public class Test {
    public static void main(String[] args) {
        Teacher wang = new Teacher("王老师", "女", 30, "数学");
        Student xiaoming = new Student("001", "小明", "男", 12, wang);
        xiaoming.reportMess();

        Teacher xiaoli = new Teacher("李老师", "男", 35, "语文");
        Student xiaohong = new Student("002", "小红", "女", 13, xiaoli);
        xiaoli.teachStu(xiaohong);
    }
}

输出结果如下：

当前小明同学给王老师班主任，反馈个人001-12信息
李老师老师正在指导小红同学学习语文