/**
* Created by IntelliJ IDEA.
* User: leizhimin
* Date: 2008-8-2 14:43:46
* 源角色
*/
public class Adaptee {
    public int get220v(){
       return 220;
    }
}

/**
* Created by IntelliJ IDEA.
* User: leizhimin
* Date: 2008-8-2 14:43:23
* 目标角色
*/
public interface Target {
    int get110v();
    int get220v();
}

/**
* Created by IntelliJ IDEA.
* User: leizhimin
* Date: 2008-8-2 14:43:07
* 适配器角色:扩展源角色，实现目标角色，从而使得目标角色改动时候，不用改动源角色，只要改动适配器
*/
public class Adapter extends Adaptee implements Target{
    public int get110v(){
        return 110;
    }
}

/**
* Created by IntelliJ IDEA.
* User: leizhimin
* Date: 2008-8-2 15:00:31
* 客户端
*/
public class Client {
    public static void main(String rags[]) {
        new Client().test();
    }

    public void test() {
        Target target = new Adapter();
        int v1 = target.get110v();
        int v2 = target.get220v();
    }
}