java的多态

public class Fu {
    String num = "fu";
    static String  age ="fu static";
    void show() {
        System.out.println("fu  show  ");
    }

    static void method() {
        System.out.println("fu  static  method ");
    }
}


public class Zi extends  Fu {
    String num = "zi";
    static String  age ="zi static";
    void show() {
        System.out.println("zi  show  ");
    }

    static void method() {
        System.out.println("zi  static  method ");
    }
    public static void main(String[] args) {
        Fu f =new  Zi();
        System.out.println(f.num);
        System.out.println(f.age);
        f.show();
        f.method();
        
    }
    
}