接口与实验:实验3

接口:

package mypackage;

public interface DogState {
	public abstract void showstate();
}


接口实现:

package mypackage;

public class SoftlyState implements DogState {

	@Override
	public void showstate() {
		// TODO 自动生成的方法存根
		System.out.println("听主人的命令");
	}

}


package mypackage;

public class MeetEnemyState implements DogState {

	@Override
	public void showstate() {
		// TODO 自动生成的方法存根
		System.out.println("狂叫,并冲向曲狠咬敌人");
	}

}


package mypackage;

public class MeetFriendState implements DogState {

	@Override
	public void showstate() {
		// TODO 自动生成的方法存根
		System.out.println("摇动尾巴,表示欢迎");
	}

}


package mypackage;

public class MeetAnotherDog implements DogState {

	@Override
	public void showstate() {
		// TODO 自动生成的方法存根
		System.out.println("嬉戏");
	}

}

类:

package mypackage;

public class Dog{
	
	public void show(DogState dog) {
		dog.showstate();
	}
}

主类:

package main_class;
import mypackage.*;
public class Main {

	public static void main(String[] args) {
		// TODO 自动生成的方法存根
		Dog k=new Dog();
		k.show(new SoftlyState());
		k.show(new MeetEnemyState());
		k.show(new MeetFriendState());
		k.show(new MeetAnotherDog());
	}

}




posted on 2017-11-24 16:15  MACHINE_001  阅读(125)  评论(0编辑  收藏  举报

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