适配器模式：将一个类的接口，转换成客户所期望的另一个接口，适配器让原本接口不兼容的类可以合作无间。
package cn.adapter.demo;
/**
* 鸭子接口：会quack叫和飞
* @author wy
*
*/
public interface Duck {
public void quack();
public void fly();
}
package cn.adapter.demo;
/**
* 一个fool鸭子
* @author wy
*
*/
public class FoolDuck implements Duck {
@Override
public void quack() {
// TODO Auto-generated method stub
System.out.println("a fool duck quack...");
}
@Override
public void fly() {
// TODO Auto-generated method stub
System.out.println("a fool duck fly so far....");
}
}
package cn.adapter.demo;
/**
* 火鸡接口：只会gooble叫，而且飞不远
* @author wy
*
*/
public interface Turkey {
public void gooble();
public void fly();
}
package cn.adapter.demo;
/**
* 一个野火鸡
* @author wy
*
*/
public class WildTurkey implements Turkey {
@Override
public void gooble() {
// TODO Auto-generated method stub
System.out.println("wild turkey goggle....");
}
@Override
public void fly() {
// TODO Auto-generated method stub
System.out.println("wild turkey just can fly a short distince...");
}
}
火鸡适配器：
package cn.adapter.demo;
/**
* 一个火鸡适配器：将火鸡变成鸭子
* @author wy
*
*/
public class TurkeyApater implements Duck {
private Turkey turkey;
public TurkeyApater(Turkey turkey) {
this.turkey = turkey;
}
@Override
public void quack() {
// TODO Auto-generated method stub
turkey.gooble();
}
@Override
public void fly() {
// TODO Auto-generated method stub
turkey.fly();
}
}
鸭子适配器：
package cn.adapter.demo;
/**
* 鸭子适配器：将鸭子变成火鸡
* @author wy
*
*/
public class DuckApater implements Turkey {
private Duck duck;
public DuckApater(Duck duck) {
this.duck = duck;
}
@Override
public void gooble() {
// TODO Auto-generated method stub
duck.quack();
}
@Override
public void fly() {
// TODO Auto-generated method stub
duck.fly();
}
}
测试：
package cn.adapter.demo;
public class Test {
public static void main(String[] args) {
WildTurkey turkey = new WildTurkey();
TurkeyApater apater = new TurkeyApater(turkey);
//让火鸡执行鸭子的动作
apater.quack();
apater.fly();
FoolDuck duck = new FoolDuck();
DuckApater duckApater = new DuckApater(duck);
//让鸭子执行火鸡的动作
duckApater.gooble();
duckApater.fly();
}
}
