Java动物声音模拟器

abstract class Animal{
  abstract void cry();
  abstract String getAnimalName();
}

class Simulator{
  void playSound(Animal animal){
       System.out.println("我是"+animal.getAnimalName());
       System.out.println("我的叫声是:");
       animal.cry();
  }
}

class Dog extends Animal{
   void cry(){
       System.out.println("汪汪汪");  
   }
   String getAnimalName(){
       return "小狗";
   }
}

class Cat extends Animal{
   void cry(){
       System.out.println("喵喵喵");  
   }
   String getAnimalName(){
       return "小猫";
   }
}

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