软件设计与体系结构实验报告软件设计与体系0920116课程名称课程编号结构实验项目名称工厂模式，单例模式案例学号班级姓名专业学生所在学院指导教师实验室名称地点实验时间实验名称：工厂模式，单例模式模式案例实验目的： 工厂单例模式 (Observer Pattern) 是设计模式中行为模式的一种，它解决了上述具有一对多依赖关系的对象的重用问题。此模式的参与者分为两大类，一类是被观察的目标，另一类是观察该目标的观察者们。正因为该模式是基于“一对多”的关系，所以该模式一般是应用于由一个目标对象和 N 个观察者对象组成（当然也可以扩展为有多个目标对象，但我们现在只讨论前者）的场合。当目标对象的状态发生改变或做出某种行为时，正在观察该目标对象的观察者们将自动地、连锁地作出相应的响应行为。通过本次实验了解观察者模式的原理。并能够运用观察者模式来进行编程。实验内容1 UML类图工厂模式手机工厂MobileMobileFactoryNokiaMotorolaMotorolaFatoryNokiaFactory工厂模式电脑产品单例模式：2 程序的源代码工厂模式手机工厂public interface Mobilepublic void call();public interface MobileFactorypublic Mobile produceMobile();public class Motorola implements Mobilepublic void call() 摩托罗拉手机 );public class Nokia implements Mobilepublic void call() 诺基亚手机 );public class MotorolaFactory implements MobileFactorypublic Mobile produceMobile() 摩托罗拉工厂制造了 );return new Motorola();public class NokiaFactory implements MobileFactorypublic Mobile produceMobile() 诺基亚工厂制造了 ); return new Nokia();public class Clientpublic static void main(String argv)MobileFactory mf;Mobile m;mf=new MotorolaFactory();m=();();mf=new NokiaFactory();m=();();工厂模式电脑产品public interface CPUpublic String getCPU();public class AMD implements CPUpublic String getCPU()return Athlon XP 2008+;public class Intel implements CPUpublic String getCPU()return 奔腾 4 3.2C;public interface HardDiskpublic String getSize();public class Maxtor implements HardDiskpublic String getSize()return MaXLine Plus II 200G;public class WestDigit implements HardDiskpublic String getSize()return WD2500JD 250G;public interface MainBoardpublic void Attach(CPU cpu) throws Exception;public class MSI865PE implements MainBoardpublic void Attach(CPU cpu) throws Exceptionif ().toString ().endsWith(Intel)MSI865PE);elsethrow new Exception(主板 MSI865PE只能配 Intel的CPU);public class MSIK7N2G implements MainBoardpublic void Attach(CPU cpu) throws Exceptionif ().toString ().endsWith(AMD)MSIK7N2G);elsethrow new Exception(主板 MSIK7N2G只能配 AMD的CPU);public abstract class ComputerFactoryCPU cpu;HardDisk hd;MainBoard mb;public void show()try.toString () + (生产的电脑配置 );(CPU: + ();(HardDisk: + ();(MainBoard:);(cpu);catch(Exception e)public class IBM extends ComputerFactoryIBM()cpu = new Intel();hd = new WestDigit();mb = new MSI865PE();public class Dell extends ComputerFactoryDell()cpu = new AMD();hd = new Maxtor();mb = new MSIK7N2G();public class Clientpublic static void main(String argv)IBM ibm = new IBM();();Dell dell = new Dell();();单例模式：package Singleton;public class AgentMazeFactory extends MazeFactorypublic AgentMazeFactory()a AgentMazeFactory has been created);package Singleton;public class EnchantedMazeFactory extends MazeFactorypublic EnchantedMazeFactory ()a EnchantedMazeFactory has been created);