package com.bjsxt.adapter;/** * 被适配的类 * (相当于例子中的，PS/2键盘) * @author Administrator * */public class Adaptee {        public void request(){        System.out.println("可以完成客户请求的需要的功能！");    }}

package com.bjsxt.adapter;/** * 客户端类 * (相当于例子中的笔记本，只有USB接口) * @author Administrator * */public class Client {        public void test1(Target t){        t.handleReq();    }        public static void main(String[] args) {        Client  c = new Client();                Adaptee a = new Adaptee();        //        Target t = new Adapter();        Target t = new Adapter2(a);                c.test1(t);            }    }

package com.bjsxt.adapter;public interface Target {    void handleReq();}

package com.bjsxt.adapter;/** * 适配器 (类适配器方式) * (相当于usb和ps/2的转接器) * @author Administrator * */public class Adapter extends Adaptee implements Target {            @Override    public void handleReq() {        super.request();    }    }

package com.bjsxt.adapter;/** * 适配器 (对象适配器方式,使用了组合的方式跟被适配对象整合) * (相当于usb和ps/2的转接器) * @author Administrator * */public class Adapter2  implements Target {        private Adaptee adaptee;        @Override    public void handleReq() {        adaptee.request();    }    public Adapter2(Adaptee adaptee) {        super();        this.adaptee = adaptee;    }            }