云大设计模式实验4(单件模式)

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1、云南大学软件学院实验报告课程：设计模式学期：2012-2013学年第一学期任课教师：陆歌浩专业：软件工程学号：20101120007姓名：孙金文成绩：实验4单件模式一、实验目的1.熟悉单件模式2.运用单件模式编制简单的java程序二、实验内容实验代码：packageheadfirst.singleton;importjavax.swing.JOptionPane;publicclassSingleton{publicstaticvoidmain(String[]args)throwsException{intinput;input=Integer.parseIn

2、t(JOptionPane.showInputDialog("请选择运行的单件模式的方式(1\2\3)"+"“1”代表同步方式“2”代表急切方式“3”代表双重加锁方式"));longStartTime=System.currentTimeMillis();if(input==1){test1xian1=newtest1();xian1.start1();test11xian11=newtest11();xian11.start11();}elseif(input==2){test2xian2=newtest2();xian2.start2();t

3、est22xian22=newtest22();xian22.start22();}elseif(input==3){test3xian3=newtest3();xian3.start3();test33xian33=newtest33();xian33.start33();}8longEndTime=System.currentTimeMillis();longa=EndTime-StartTime;JOptionPane.showMessageDialog(null,"执行时间为："+a+"ms.","执行结果(孙金文——20101120007)",JO

4、ptionPane.PLAIN_MESSAGE);}}packageheadfirst.singleton;publicclassChocolateboiler1{privatebooleanempty;privatebooleanboiled;privatestaticChocolateboiler1uniqueinstance;privateChocolateboiler1(){empty=true;boiled=false;}publicstaticsynchronizedChocolateboiler1getinstance(){if(uniqueins

5、tance==null){uniqueinstance=newChocolateboiler1();}returnuniqueinstance;}publicvoidfill(){if(isempty()){empty=false;boiled=false;}}publicvoiddrain(){if(!isempty()&&isboiled())empty=true;}publicvoidboil(){if(!isempty()&&!isboiled())boiled=true;}publicbooleanisempty(){returnempty;}8pub

6、licbooleanisboiled(){returnboiled;}}packageheadfirst.singleton;publicclassChocolateboiler2{privatebooleanempty;privatebooleanboiled;privatestaticChocolateboiler2uniqueinstance=newChocolateboiler2();privateChocolateboiler2(){empty=true;boiled=false;}publicstaticChocolateboiler2getinst

7、ance(){returnuniqueinstance;}publicvoidfill(){if(isempty()){empty=false;boiled=false;}}publicvoiddrain(){if(!isempty()&&isboiled())empty=true;}publicvoidboil(){if(!isempty()&&!isboiled())boiled=true;}publicbooleanisempty(){returnempty;}publicbooleanisboiled(){returnboiled;}}8packageh

8、eadfirst.sin