设计模式

适配器模式

  • 两个类所做的事相同或相似,但是具有不同的接口.
  • 想使用一个已存在的类,但是其方法名与你要求的不同.
  • 必要时.
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package adapter;

/**
 * Created by hero on 17-2-19.
 */
public abstract class Player {
    public abstract void attack();
}

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package adapter;

/**
 * Created by hero on 17-2-19.
 */
public class Forward extends Player {
    public void attack() {
        System.out.println("attack");
    }
}

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package adapter;

/**
 * Created by hero on 17-2-19.
 */
public class PlayerAdapter extends Player {
    private ForeignPlayer foreignPlayer;

    public PlayerAdapter(ForeignPlayer foreignPlayer) {
        this.foreignPlayer = foreignPlayer;
    }

    /** 适配 */
    public void attack() {
        foreignPlayer.进攻();
    }
}

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package adapter;

/**
 * Created by hero on 17-2-19.
 */
public class ForeignPlayer {
    public void 进攻() {
        System.out.println("进攻");
    }
}

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package adapter;

/**
 * Created by hero on 17-2-19.
 */
public class Main {
    public static void main(String[] args) {
        Player meixi = new Forward();

        ForeignPlayer yaoming = new ForeignPlayer();
        Player foreigner = new PlayerAdapter(yaoming);

        meixi.attack();
        foreigner.attack();
    }
}