java动物模拟器接口

package mypackage;
public class Dog implements Animal {
    public void cry() {
        System.out.println("汪汪汪");
    }
public  String getAnimalName() {
        return "狗";
    }
    }




package mypackage;
public class Cat implements Animal{
    public void cry() {
        System.out.println("喵喵喵");
    }
    public String getAnimalName() {
        return "猫";
    }
    }








package mypackage;
public class Application{ 
public static void main(String args[]){ 
Simulator simulator = new Simulator(); 
simulator.playSound(new Dog()); 
simulator.playSound(new Cat()); 
} 
}