桥接模式

定义：将抽象部分与它的实现部分分离，使它们都可以独立地变化。

结构图：

public abstract class HandSetBrand {protected HandSetSoft soft;public HandSetSoft getSoft() {return soft;}public void setSoft(HandSetSoft soft) {this.soft = soft;}public abstract void Run();}

interface HandSetSoft {void Run();}public class HandsetGame implements HandSetSoft{@Overridepublic void Run() {System.out.println("运行手机游戏");}}public class HandsetAddressList implements HandSetSoft{@Overridepublic void Run() {System.out.println("运行手机通讯录");}}<pre name="code" class="java">public abstract class Han<pre name="code" class="java">public class Client {public static void main(String[] args) {HandSetBrand hsb;hsb = new HandSetBrandN();hsb.setSoft(new HandsetGame());hsb.Run();hsb.setSoft(new HandsetAddressList());hsb.Run();hsb = new HandSetBrandN();hsb.setSoft(new HandsetGame());hsb.Run();hsb.setSoft(new HandsetAddressList());hsb.Run();}}

dSetBrand {protected HandSetSoft soft;public HandSetSoft getSoft() {return soft;}public void setSoft(HandSetSoft soft) {this.soft = soft;}public abstract void Run();}

public class HandSetBrandB extends HandSetBrand{@Overridepublic void Run() {soft.Run();}}public class HandSetBrandN extends HandSetBrand{@Overridepublic void Run() {soft.Run();}}

实现系统可能有多角度分类，每一钟分类都有可能变化，那么就把这种多角度分离出来让它们独立变化，减少它们之间的耦合。