常用设计模式——适配器模式

/**
 * 鸭子
 * @author huangy on 2019-05-26
 */
public interface Durk {

    void quack();

    void fly();

}

/**
 * 火鸡
 * @author huangy on 2019-05-26
 */
public interface Turkey {

    /**
     * 火鸡的叫声
     */
    void gobble();

    void fly();
}

/**
 * 某个火鸡实现
 * @author huangy on 2019-05-26
 */
public class WildTurkey implements Turkey {

    @Override
    public void gobble() {
        System.out.println("WildTurkey gobble");
    }

    @Override
    public void fly() {
        System.out.println("WildTurkey fly");
    }
}

/**
 * 适配器（将火鸡转变成鸭子）
 * @author huangy on 2019-05-26
 */
public class TurkeyAdapter implements Durk {

    Turkey turkey;

    public TurkeyAdapter(Turkey turkey) {
        this.turkey = turkey;
    }

    @Override
    public void quack() {
        turkey.gobble();
    }

    @Override
    public void fly() {
        turkey.fly();
    }
}

public class DuckTest {

    public static void main(String[] args) {
        // 火鸡对象
        WildTurkey wildTurkey = new WildTurkey();

        // 把火鸡对象包装成鸭子
        Durk durk = new TurkeyAdapter(wildTurkey);

        durk.quack();
        durk.fly();
    }

}