java 怎么改这个才不会报错？

class  Student{
    int age;
    String name;
    int var;
    public Student(){
    }
    public Student(int age){
        this.age = age;
    }
    public Student(String name){
        this(var);
        this.name = name;
    }
}

11行是要干啥？去掉不就行了