设计模式——适配器模式

标签：设计模式

适配器模式类图：

以下程序模拟鸭子和火鸡的叫和飞的动作。假设你缺少鸭子对象，则将一个火鸡适配成一个鸭子，用火鸡冒充鸭子来使用。
 
1.定义鸭子接口

package net.dp.adapter.ducks;
 
public interface Duck {
    public void quack();
 
    public void fly();
}

package net.dp.adapter.ducks;
 
public interface Turkey {
    public void gobble();
 
    public void fly();
}

package net.dp.adapter.ducks;
 
public class WildTurkey implements Turkey {
    public void gobble() {
        System.out.println("Gobble gobble");
    }
 
    public void fly() {
        System.out.println("I'm flying a short distance");
    }
}

package net.dp.adapter.ducks;
 
public class TurkeyAdapter implements Duck {
    Turkey turkey;
 
    public TurkeyAdapter(Turkey turkey) {
        this.turkey = turkey;
    }
 
    public void quack() {
        turkey.gobble();
    }
 
    public void fly() {
        for (int i = 0; i < 5; i++) {
            turkey.fly();
        }
    }
}

5.测试类

package net.dp.adapter.ducks;
 
public class DuckTestDrive {
    public static void main(String[] args) {
 
        WildTurkey turkey = new WildTurkey();
        Duck turkeyAdapter = new TurkeyAdapter(turkey);
 
        testDuck(turkeyAdapter);
    }
 
    static void testDuck(Duck duck) {
        duck.quack();
        duck.fly();
    }
}

设计模式——适配器模式

标签：设计模式

原文地址：http://blog.csdn.net/liuchangqing123/article/details/43938595