Java-面向对象_多态（1）

public class Animal {
    public void shut(){
        System.out.println("我是小动物，我会叫");
    }
}

public class Pig extends Animal{
    public void shut() {
        System.out.println("我是小猪，我会嗯嗯嗯叫");
    }
}

public class Test {

    public static void main(String[] args) {
        Girl g = new Girl();
        
        Pig pig = new Pig();
        Animal animal = pig;
        g.play(animal);
    }

}