super和this关键字图解

super和this关键字图解

public class Fu {
    int num = 10;
    public void method(){
        System.out.println("父类方法");
    }
}

public class Zi extends Fu{
    int num = 20;
    @Override
    public void method(){
        super.method();
        System.out.println("子类方法");
    }
    public void show(){
        int num = 30;
        System.out.println(num);
        System.out.println(this.num);
        System.out.println(super.num);
    }
}

public class Test {
    public static void main(String[] args) {
        Zi zi = new Zi();
        zi.show();
        zi.method();
    }
}