组合,外观,迭代器模式案例实验报告

1、 软件设计与体系结构实 验 报 告课程名称软件设计与体系结构课程编号0920116实验项目名称 组合，外观，迭代器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： 迭代器，外观，组合模式案例 实验目的：迭代器，外观，组合模式(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

2、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类图迭代器模式：组合模式：外观模式冲茶2 程序的源代码 迭代器： package Iterator;import java.util.Enumeration;public class MyEnumeration private Enumeration me;private int step;public Enumeration getMe() return me;public void setMe(Enum

3、eration me) this.me = me;public int getStep() return step;public void setStep(int step) this.step = step;public MyEnumeration(Enumeration e) me = e;public void traverse() while (me.hasMoreElements() System.out.println(me.nextElement();public void jumptraverse() while (me.hasMoreElements() System.out

4、.println(me.nextElement();for (int i = 1; i < step; i+) if (me.hasMoreElements()me.nextElement();package Iterator;import java.util.Enumeration;import java.util.Vector;public class Test public static void main(String args) / TODO Auto-generated method stubVector v =new Vector<>();v.add(3);v.

5、add(6);v.add(9);v.add(12);v.add(15);v.add(18);v.add(21);v.add(24);v.add(27);Enumeration<Vector> e=v.elements();MyEnumeration m=new MyEnumeration(e);System.out.println("normal traverse:");/m.traverse();m.setStep(3);System.out.println("jump traverse:");m.jumptraverse();组合模式：p

6、ackage Combination;public abstract class Company protected String name;public Company(String s)name=s;public abstract void add(Company c);public abstract void remove(Company c);public abstract void display(int depth);public abstract void lineOfDuty();package Combination;public class FinanceDepartmen

7、t extends Company public FinanceDepartment(String s) super(s);/ TODO Auto-generated constructor stubOverridepublic void add(Company c) / TODO Auto-generated method stubOverridepublic void remove(Company c) / TODO Auto-generated method stubOverridepublic void display(int depth) / TODO Auto-generated

8、method stubString s=""for(int i=0;i<depth;i+)s=s+'-'System.out.println(s+name);Overridepublic void lineOfDuty() / TODO Auto-generated method stubSystem.out.println(name+" 负责管理公司财务收支");package Combination;import java.io.Serializable;import java.util.ArrayList;import jav

9、a.util.Collection;import java.util.Iterator;import java.util.List;import java.util.ListIterator;public class ConcreteCompany extends Company implements Serializableprivate List<Company> children;public ConcreteCompany(String s) super(s);children=new ArrayList<Company>();public void add(C

10、ompany c) / TOO Auto-generated method stubtrychildren.add(c);catch(Exception e)if(children=null)System.out.println("cccc=null");public void remove(Company c) / TODO Auto-generated method stubchildren.remove(c);public void display(int depth) / TODO Auto-generated method stubString s="&

11、quot;for(int i=0;i<depth;i+)s=s+'-'System.out.println(s+name);ListIterator<Company> i = children.listIterator();while(i.hasNext()i.next().display(depth+2);public void lineOfDuty() / TODO Auto-generated method stubIterator<Company> i=children.iterator();while(i.hasNext()i.next(

12、).lineOfDuty();package Combination;public class HRdepartment extends Company public HRdepartment(String s) super(s);/ TODO Auto-generated constructor stubOverridepublic void add(Company c) / TODO Auto-generated method stubOverridepublic void remove(Company c) / TODO Auto-generated method stubOverrid

13、epublic void display(int depth) / TODO Auto-generated method stubString s=""for(int i=0;i<depth;i+)s=s+'-'System.out.println(s+name);Overridepublic void lineOfDuty() / TODO Auto-generated method stubSystem.out.println(name+" 负责员工招聘培训管理");package Combination;public clas

14、s Test public static void main(String args) ConcreteCompany root=new ConcreteCompany("北京总公司");root.add(new HRdepartment("总公司人力资源部");root.add(new FinanceDepartment("总公司财务部");ConcreteCompany comp=new ConcreteCompany("上海华东分公司");comp.add(new HRdepartment("华东分

15、公司人力资源部");comp.add(new FinanceDepartment("华东分公司财务部");root.add(comp);ConcreteCompany comp1=new ConcreteCompany("南京办事处");comp1.add(new HRdepartment("南京办事处人力资源部");comp1.add(new FinanceDepartment("南京办事处财务部");comp.add(comp1);ConcreteCompany comp2=new ConcreteC

16、ompany("杭州办事处");comp2.add(new HRdepartment("杭州办事处人力资源部");comp2.add(new FinanceDepartment("杭州办事处财务部");comp.add(comp2);System.out.println("公司结构图");root.display(1);System.out.println("各部门职责");root.lineOfDuty();外观模式冲茶：public class TeaBag public TeaBag()

17、System.out.println("清香的茶包准备好了"); public class Water boolean waterIsBoiling; public Water () setWaterIsBoiling (false); System.out.println ("纯净的水准备好了"); public void boilFacadeWater () setWaterIsBoiling (true); System.out.println ("水在沸腾"); public void setWaterIsBoiling (b

18、oolean isWaterBoiling) waterIsBoiling = isWaterBoiling; public boolean getWaterIsBoiling () return waterIsBoiling; public class TeaCup boolean teaBagIsSteeped; Water facadeWater; TeaBag facadeTeaBag; public TeaCup () setTeaBagIsSteeped (false); System.out.println ("茶杯准备好了"); public void se

19、tTeaBagIsSteeped (boolean isTeaBagSteeped) teaBagIsSteeped = isTeaBagSteeped; public boolean getTeaBagIsSteeped () return teaBagIsSteeped; public void addFacadeTeaBag (TeaBag facadeTeaBagIn) facadeTeaBag = facadeTeaBagIn; System.out.println ("茶包放在苶杯了"); public void addFacadeWater (Water fa

20、cadeWaterIn) facadeWater = facadeWaterIn; System.out.println ("水倒入杯子了"); public void steepTeaBag () if ( (facadeTeaBag != null) && ( (facadeWater != null) && (facadeWater.getWaterIsBoiling () System.out.println ("茶渗透到杯子中"); setTeaBagIsSteeped (true); else System.o

21、ut.println ("茶没有渗透到杯子中"); setTeaBagIsSteeped (false); public String toString() if (this.getTeaBagIsSteeped() return ("一杯又香又浓的茶冲好了!"); else String tempString = new String ("一个杯子"); if (facadeWater != null) if (facadeWater.getWaterIsBoiling () tempString = (tempString + &

22、quot;放有沸腾的水 "); else tempString = (tempString + "放有冻水 "); else tempString = (tempString + "没有放水 "); if (facadeTeaBag != null) tempString = (tempString + "有一个茶包"); else tempString = (tempString + "没有茶包"); return tempString; public class FacadeCuppaMaker bo

23、olean teaBagIsSteeped; public FacadeCuppaMaker() System.out.println("FacadeCuppaMaker 准备可以为你冲茶了!"); public TeaCup makeACuppa() TeaCup cup = new TeaCup(); TeaBag teaBag = new TeaBag(); Water water = new Water(); cup.addFacadeTeaBag(teaBag); water.boilFacadeWater(); cup.addFacadeWater(water); cup.steepTeaBag(); return cup; public class Client public static void main (String args) FacadeCuppaMaker cuppaMaker = new FacadeCuppaMa