Java继承问题，代码如下

Question

提示报错：TestTeacher.java:19: 错误: 递归构造器调用 Teacher (String name,int age ,String job) { ^ 1 个错误

 class Person {
    String name;
    int age;
    Person (String name ,int age) {
        this.name = name;
        this.age = age;
    }

    Person() {name = "jhon";age = 5;}

    public String info() {
        return "name:"+ name + "age:" + age;
    }
}

class Teacher extends Person {
    String job;

    Teacher (String name,int age ,String job) {
        this(name,age,job);
    }
    Teacher (String n,int a) {
        super(n,a);
        job = "teacher";
    }


    public String info() {
        return "name:" + name+"age:" + age +"job:" +job;
    }
}


public class TestTeacher {
    public static void main(String[] args) {
        Person p1 = new Person();
        Person p2 = new Person ("may",9);
        Teacher t1 = new Teacher("alice",21);
        Teacher t2 = new Teacher("tom",20,"professor");
        System.out.println(p1.info());
        System.out.println(p2.info());
        System.out.println(t1.info());
        System.out.println(t2.info());
    }
}

Answer 1

Teacher (String name,int age ,String job) {
this(name,age,job);
}
这样写的话相当于一直在调用自己....死循环了.