Question

求大神帮帮我，在线等，急

public class Classroom {

public Teacher teacher; //保存教师

public Student[] students = new Student[40]; //保存学生

public int count = 0; //保存学生数量

public Teacher getTeacher() {

//返回教室中的教师

return teacher;

}

public Student[] getStudents() {

//返回所有的学生

return student;

}

public void setTeacher(Teacher tea) {

//更换教师

Teacher(int id, String name, double salary, int clRoomId, int age);

}

public void addStudent(Student stu) {

//增加学生

stu++;

}

public boolean removeStudent(int idx) {

//删除学生

}

public int getStudentNum() {

//返回教室中学生的数量

return student;

}

public void print() {

//输出当前教室中的教师和学生的信息

System.out.println(

}

}

public class ClassroomTest {

public static void main(String[] args) {

//创建Classroom对象

Classroom c=new Classroom();

//创建Teacher对象，并将Teacher分配到Classroom中

Teacher t=new Teacher();

t.Classroom();

//创建3个Student对象，并将Student分配到Classroom中

Student s1=new Student();

Student s2=new Student();

Student s3=new Student();

s1.Classroom();

s2.Classroom();

s3.Classroom();

//调用Classroom中的其它方法，测试方法的业务逻辑是否准确

c.setTeacher(Teacher tea);

c.addStudent(Student stu);

c.removeStudent(int idx);

c.getStudentNum();

c.print();

}

}

public class Teacher {

public int id;

public String name;

public double salary;

public int clRoomId;

public int age;

public Teacher(){ }

public Teacher(int id, String name, double salary, int clRoomId, int age) {

this.id = id;

this.name = name;

this.salary = salary;

this.clRoomId = clRoomId;

this.age = age;

}

public void print() {

System.out.println("---- Teacher ----");

System.out.println("id:" + this.id);

System.out.println("name:" + name);

System.out.println("salary:" + salary);

System.out.println("classroom id:" + clRoomId);

System.out.println("age:" + age);

}

}

public class Student {

public int id;

public String name;

public int age;

public void print() {

System.out.println("------ Student ------");

System.out.println("id:" + id);

System.out.println("name:" + name);

System.out.println("age:" + age);

}

public Student(int sId, String sName, int sAge) {

id = sId;

name = sName;

age = sAge;

}

}

Answer 1

this.teacher=tea;

追问

//创建Teacher对象，并将Teacher分配到Classroom中

Teacher t=new Teacher();

t.Classroom();
这个分配是什么意思啊？

追答

你确定这是对的么？你写的Teacher类里面都没有这个方法- -!，应该是

c.setTeacher(t);才是正确的操作

仔细看下你的Classroom和ClassroomTest基本都是错的，我帮你改了下，代码太多贴不出来，我发附件了

Answer 2

所以你的问题是...

追问

public void setTeacher(Teacher tea) {

//更换教师

}

里面应该填什么

追答

小伙子，我刚才把你的代码放到eclipse里看了一下，问题很多啊。而且get和set方法也不是手敲的啊，应该是自动生成的。保存学生的信息最好用集合，不要用数组。

追问

好的谢谢你！