在Java中使用super方法打印所有继承的值

Question

package supertest;
public class Parent {
    public void show  (){
        System.out.println(" I am father");     
    }


package supertest;
public class Child  extends Parent{
    public void show(){
        System.out.println("I am child ");
    }
}




public class GrandChild extends Child{

    public void test(){
        super.show();
        System.out.println("I am grand child");

    }




    public static void main(String[] args) {      
        GrandChild gr=new GrandChild();
        gr.test();   

    }

The super method prints in output "I am child I am grand child" but I would like to print all three method values "I am father, I am child, I am grand child" How can I fix this

Answer 1

In grandChild.show() , calling super.show() will invoke child.show() .

So, in child.show() , you need call super.show() explictly to invoke parent.show() :

public class Child  extends Parent{
    public void show(){
        super.show();
        System.out.println("I am child ");
    }
}