OOAD面向对象的分析与设计课件.ppt

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1、Object-OrientedAnalysisandDesignIntroductionTomPerkinsPages:634PubDate:November2006Publisher:O'ReillybyBrettMcLaughlin,GaryPollice,DavidWestHeadFirstObject-OrientedAnalysisandDesignPrintISBN-13:978-0-59-600867-3PrintISBN-10:0-596-00867-8HeadFirstChaptersG

2、reatSoftwareBeginsHereGatheringRequirementsRequirementsChangeAnalysisHandlingChangeSmallChangesleadtoBigProblemsIncorporatingFlexibilitySoftwareArchitectureBringingOrdertoChaosDesignPrinciplesIteratingandTestingAnOOADSoftwareProcessObstaclesNotthe“perfect

3、”IntroductiontoObjectOrientationbookExamplesinJavaReworkinVB.NETorC#.NETApproachtoo“Juvenile”MaybeIncorporatesmanydifferentfeaturesdrawnfromlearningtheoryandcognitivepsychologyNotacoursefor“objectorientedgurus”Yetassumessomefamiliaritywithobject-orientedc

4、odingApproachStickclosetothebookAsmuchcodeaspossibleWalkthru’sGetyourhandsdirty,becomeinvolvedDothebookexercisesWorkwithsomeonewherepossibleParticipateinclassdiscussionsTeamLearningExperimentsWelcometoObjectville“Foist,yousegottaspeakdalanguage!”LearningO

5、bjectivesBeabletoreadandinterpretaUMLclassdiagramBeabletowriteasimpleclassinVB.NETorC#.NetBeabletowriteaclassthatinheritsfromanotherclass,changessomebehaviorandaddssomebehaviortothebaseclassBeabletodefinepolymorphismBeabletoidentifywhatencapsulationisandw

6、hyitisimportantPointsofInterestUMLInheritancesetsetsetsetsetPolymorphismEncapsulationUMLandClassDiagramsAirplanespeed:intgetSpeed():intsetSpeed(int)ClassDiagramMemberVariablesname:typeNameMethodsname(parametersthemethoduses):returntypeBasicAirplaneClassVB

7、.NETPublicClassAirplanePrivatemSpeedAsIntegerSubNew()EndSubPublicSubSetSpeed(ByValvalueAsInteger)mSpeed=valueEndSubPublicFunctionGetSpeed()AsIntegerReturnmSpeedEndFunctionEndClassC#.NETusingSystem;usingSystem.Collections.Generic;usingSystem.Text;namespace

8、Objectville_Demo_CS{publicclassAirplane{privateintspeed;publicAirplane(){//constructor}publicvirtualvoidsetSpeed(intspeed){this.speed=speed;}publicvirtualintgetSpeed(){returnspeed;}}}Whatdoesn’ttheClassDiagramgiveyo