Java课后第五章习题

package cn.edu.whpu;


abstract class Animal{
	abstract void cry();
	abstract String getAnimalName();
}
class Simulator{
	void playSound(Animal animal) {
		System.out.print("现在播放"+animal.getAnimalName()+"的声音：");
		animal.cry();
	}	
}
class Dog extends Animal{
	void cry() {
		System.out.println("汪汪汪");
	}
	String getAnimalName() {
		return "Dog";
	}
}
class Cat extends Animal{
	void cry() {
		System.out.println("喵喵喵");
	}
	String getAnimalName() {
		return "Cat";
	}
}
public class study {
	public static void main(String[] args) {
		Simulator simulator=new Simulator();
		simulator.playSound(new Dog());
		simulator.playSound(new Cat());
	}
}