Java设计模式--适配器模式详解

public interface ThreePointFiveConn {
	//一个提供音乐的3.5mm接口
	public void playMusic(String connector);
}

public interface PlayMusicConn {
	public void playMusicOut(String connector);
}
public class TypecPlayMusicConn implements PlayMusicConn {
	//只允许typec接头插入
	public void playMusicOut(String phoneConnType, String musicName) {
		if("typec".equals(phoneConnType)){
			//实现播放音乐功能
			System.out.println("playing music with typec Player..." + musicName);
		}else {
			System.out.println("error!");
		}
	}
}
public class LightningPlayMusicConn implements PlayMusicConn {
	//只允许Lightning接头插入
	public void playMusicOut(String phoneConnType, String musicName) {
		if("lightning".equals(phoneConnType)){
			//实现播放音乐功能
			System.out.println("playing music with lightning Player..." + musicName);
		}else {
			System.out.println("error!");
		}
	}
}

public class Transverter extends TypecPlayMusicConn implements ThreePointFiveConn {
	//调用继承的适配者类的方法
	public void playMusic(String musicName) {
		super.playMusicOut("typec", musicName);
	}
}

public class EarPhone {
	public static void main(String[] args) {
		ThreePointFiveConn earPhone = new Transverter();
		earPhone.playMusic("Hey Jude");
	}
}

public class Transverter implements ThreePointFiveConn {
	//定义适配者类的对象实例
	private PlayMusicConn playMusicConn;
	public Transverter(PlayMusicConn playMusicConn){
		this.playMusicConn = playMusicConn;
	}
	public void playMusic(String musicName) {
		if(playMusicConn instanceof TypecPlayMusicConn) {
			playMusicConn.playMusicOut("typec", musicName);
		}else if(playMusicConn instanceof LightningPlayMusicConn) {
			playMusicConn.playMusicOut("lightning", musicName);
		}else {
			System.out.print("error!");
		}
	}
}

public class EarPhone {
	public static void main(String[] args) {
		//typec接口手机播放音乐
		ThreePointFiveConn earPhone = new Transverter(new TypecPlayMusicConn());
		earPhone.playMusic("Hey Jude");
		//lightning接口手机播放音乐
		ThreePointFiveConn earPhone1 = new Transverter(new LightningPlayMusicConn());
		earPhone1.playMusic("Hey Jude");
	}
}

public abstract class TransverterInterface implements ThreePointFiveConn {
	PlayMusicConn playMusicConn = new TypecPlayMusicConn();
	public void playMusic(String musicName) {
		playMusicConn.playMusicOut("typec", musicName);
	}
	public void anotherMethod1(){}
	public void anotherMethod2(){}
}
public class TransverterInterfaceImpl extends TransverterInterface {
	public void playMusic(String musicName) {
		super.playMusic(musicName);
	}
}