Structural model -- Structural model

1 适配器模式

2 代码

interface AdvancePlayer{
    public void playMp4();
    public void playVlc();
}
class VlcPlayer implements AdvancePlayer{
    @Override
    public void playMp4() {
    }
    @Override
    public void playVlc() {
        System.out.println("play vlc");
    }
}
class Mp4Player implements AdvancePlayer{
    @Override
    public void playMp4() {
        System.out.println("play mp4");
    }
    @Override
    public void playVlc() {
    }
}
interface Player{
    public void play(String type);
}
class MediaAdapter implements Player{
    AdvancePlayer advancePlayer;
    @Override
    public void play(String type) {
        if (type.equals("mp4")){
            advancePlayer = new Mp4Player();
            advancePlayer.playMp4();
        }else if (type.equals("vlc")){
            advancePlayer = new VlcPlayer();
            advancePlayer.playVlc();
        }
    }
}
class AudioPlayer implements Player{
    private MediaAdapter mediaAdapter;
    @Override
    public void play(String type) {
        mediaAdapter = new MediaAdapter();
        mediaAdapter.play(type);
    }
}
public class Test{
    public static void main(String[] args){
        AudioPlayer audioPlayer = new AudioPlayer();
        audioPlayer.play("mp4");
        audioPlayer.play("vlc");
    }
}

最后

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