面向对象课后习题及答案如有错误敬请见谅.docx

面向对象课后习题及答案如有错误敬请见谅.docx

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面向对象课后习题及答案如有错误敬请见谅

目录

Chapter12

Chapter23

Chapter34

Chapter46

Chapter57

Chapter68

Chapter79

Chapter811

Chapter912

Chapter1013

Chapter1115

Chapter1216

Chapter1318

Chapter1419

Chapter1521

Chapter1622

Chapter1723

Chapter1825

Chapter1926

Chapter2027

AnswerstoExercises29

Chapter1

EXERCISES

Multiple-choicequestions:

Foreachquestion,chooseoneoftheanswers.

1.Whatissoftwaremodeling?

（a）Developingmodelsofsoftware.

（b）Designingsoftwareapplicationsbeforecoding.

（c）Developingsoftwarediagrams.

（d）Developingsoftwareprototypes.

2.WhatistheUnifiedModelingLanguage?

（a）Aprogramminglanguagefordescribingobject-orientedmodels.

（b）Adiagrammingtoolfordrawingobject-orientedmodels.

（c）Agraphicallanguagefordescribingobject-orientedmodels.

（d）Astandardizedgraphicallanguageandnotationfordescribingobject-orientedmodels.

3.Whatisasoftwarearchitecture?

（a）Thesoftwareinsideabuilding.

（b）Thestructureofaclient/serversystem.

（c）Theoverallstructureofasoftwaresystem.

（d）Thesoftwareclassesandtheirrelationships.

4.Whatisasoftwaredesignnotation?

（a）Notesaboutthesoftwaredesign.

（b）Agraphicalortextualdescriptionofthesoftware.

（c）Documentationofthesoftware.

（d）Asystematicapproachforproducingadesign.

5.Whatisasoftwaredesignconcept?

（a）Agraphicalortextualdescriptionofthesoftware.

（b）Documentationofthesoftware.

（c）Afundamentalideathatcanbeappliedtodesigningasystem.

（d）Asystematicapproachforproducingadesign.

6.Whatisasoftwaredesignstrategy?

（a）Agraphicalortextualdescriptionofthesoftware.

（b）Afundamentalideathatcanbeappliedtodesigningasystem.

（c）Asystematicapproachforproducingadesign.

（d）Anoverallplananddirectionfordevelopingadesign.

7.Whataresoftwarestructuringcriteria?

（a）Fundamentalideasthatcanbeappliedtodesigningasystem.

（b）Systematicapproachesforproducingadesign.

（c）Guidelinesusedtohelpinstructuringasoftwaresystemintoitscomponents.

（d）Overallplansfordevelopingadesign.

8.Whatisasoftwaredesignmethod?

（a）Asystematicapproachforproducingadesign.

（b）Guidelinesusedtohelpinstructuringasoftwaresystemintoitscomponents.

（c）Anoverallplanfordevelopingadesign.

（d）Agraphicalortextualdescriptionofthesoftware.

9.Whatisaplatform-independentmodel（PIM）?

（a）Asoftwareplatformbeforeacommitmentismadetoaspecifichardwareplatform.

（b）Aprecisemodelofthesoftwarearchitecturebeforeacommitmentismadetoaspecificplatform.

（c）Aprecisemodelofthesoftwarearchitecturemappedtoaspecificplatform.

（d）Agraphicalortextualdescriptionofthesoftware.

10.Whatisaplatform-specificmodel（PSM）?

（a）Aspecifichardwareplatform.

（b）Aprecisemodelofthesoftwarearchitecturebeforeacommitmentismadetoaspecificplatform.

（c）Aprecisemodelofthesoftwarearchitecturemappedtoaspecificplatform.

（d）Agraphicalortextualdescriptionofthesoftware.

Chapter2

EXERCISES

Multiple-choicequestions:

Foreachquestion,chooseoneoftheanswers.

1.Howisanactordepictedonausecasediagram?

（a）Anoval

（b）Astickfigure

（c）Abox

（d）Adashedline

2.Howisausecasedepictedonausecasediagram?

（a）Anoval

（b）Astickfigure

（c）Abox

（d）Adashedline

3.Howisaclassdepictedonaclassdiagram?

（a）Aboxwithonecompartment

（b）Aboxwithoneortwocompartments

（c）Aboxwithone,two,orthreecompartments

（d）Anoval

4.Howisanassociationdepictedonaclassdiagram?

（a）Asolidlinejoiningtwoclassboxes

（b）Adashedlinejoiningtwoclassboxes

（c）Adiamondtouchingtheupperclassbox

（d）Anarrowheadtouchingtheupperclassbox

5.Howispublicvisibilitydepictedforaclasselementonaclassdiagram?

（a）+sign

（b）−sign

（c）#sign

（d）∗sign

6.WhatarethetwokindsofUMLinteractiondiagrams?

（a）Classdiagramandsequencediagram

（b）Sequencediagramandcommunicationdiagram

（c）Classdiagramandcommunicationdiagram

（d）Statechartandcommunicationdiagram

7.Whatdoesaninteractiondiagramdepict?

（a）Objectsandlinks

（b）Classesandrelationships

（c）Objectsandmessages

（d）Statesandevents

8.Whatdoesastatechartdiagramdepict?

（a）Objectsandlinks

（b）Classesandrelationships

（c）Objectsandmessages

（d）Statesandevents

9.WhatisaUMLpackage?

（a）Abox

（b）Agroupingofclasses

（c）Agroupingofusecases

（d）Agroupingofmodelelements

10.Whatdoesadeploymentdiagramdepict?

（a）Thephysicalconfigurationofthesystemintermsofphysicalclassesandphysicalconnectionsbetweentheclasses

（b）Thephysicalconfigurationofthesystemintermsofphysicalobjectsandphysicalconnectionsbetweentheobjects

（c）Thephysicalconfigurationofthesystemintermsofphysicalnodesandphysicalconnectionsbetweenthenodes

（d）Thephysicalconfigurationofthesystemintermsofphysicalcomputersandphysicalnetworksbetweenthecomputers

Chapter3

EXERCISES

Multiple-choicequestions:

Foreachquestion,chooseoneoftheanswers.

1.Whatisasoftwarelifecycle?

（a）Thelifeofthesoftware

（b）Acyclicapproachtodevelopingsoftware

（c）Aphasedapproachtodevelopingsoftware

（d）Thelifeofsoftwaredevelopedincycles

2.Whatisthewaterfalllifecyclemodel?

（a）Softwaredevelopedunderawaterfall

（b）Aprocessmodelinwhicheachphaseiscompletedbeforethenextphaseisstarted

（c）Aprocessmodelinwhichphasesareoverlapped

（d）Aprocessmodelinwhichphasesarecyclic

3.Whichofthefollowingisalimitationofthewaterfalllifecyclemodel?

（a）Softwareisdevelopedinphases.

（b）Eachphaseiscompletedbeforethenextphaseisstarted.

（c）Softwaredevelopmentiscyclic.

（d）Softwarerequirementsarenotproperlytesteduntilaworkingsystemisavailable.

4.Whichofthefollowingapproachescanovercomethelimitationinthepreviousquestion?

（a）Phasedsoftwaredevelopment

（b）Throwawayprototyping

（c）Evolutionaryprototyping

（d）Incrementaldevelopment

5.Whatisevolutionaryprototyping?

（a）Phasedsoftwaredevelopment

（b）Throwawayprototyping

（c）Risk-drivendevelopment

（d）Incrementaldevelopment

6.Whatapproachdoesthespiralmodelemphasize?

（a）Phasedsoftwaredevelopment

（b）Throwawayprototyping

（c）Risk-drivendevelopment

（d）Incrementaldevelopment

7.Whatisthegoalofsoftwarevalidation?

（a）Buildingthesystem

（b）Buildingtherightsystem

（c）Buildingthesystemright

（d）Testingthesystem

8.Whatisthegoalofsoftwareverification?

（a）Buildingthesystem

（b）Buildingtherightsystem

（c）Buildingthesystemright

（d）Testingthesystem

9.Whatis“whitebox”testing?

（a）Unittesting

（b）Integrationtesting

（c）Testingwithknowledgeofthesysteminternals

（d）Testingwithoutknowledgeofthesoftwareinternals

10.Whatis“blackbox”testing?

（a）Systemtesting

（b）Integrationtesting

（c）Testingwithknowledgeofthesysteminternals

（d）Testingwithoutknowledgeofthesoftwareinternals

Chapter4

EXERCISES

Multiple-choicequestions:

Foreachquestion,chooseoneoftheanswers.

1.Whichofthefollowingareobject-orientedconcepts?

（a）Modulesandinterfaces

（b）Modulesandinformationhiding

（c）Classes,informationhiding,andinheritance

（d）Concurrencyandinformationhiding

2.Whichofthefollowingisacharacteristicofanobject?

（a）Afunctionorsubroutine

（b）Amodule

（c）Groupsdataandproceduresthatoperateonthedata

（d）Groupsafunctionandanalgorithm

3.Whatisaclass?

（a）Anobjectinstance

（b）Theimplementationoftheobject

（c）Acollectionofobjectswiththesamecharacteristics

（d）Acollectionofobjectswithdifferentcharacteristics

4.Whatisanoperation（alsoknownasmethod）ofaclass?

（a）Specificationandtheimplementationofafunctionperformedbyaclass

（b）Specificationandtheimplementationofasubroutineprovidedbyaclass

（c）Specificationandtheimplementationofafunctionorprocedureprovidedbyaclass

（d）Specificationandtheimplementationofaninterfaceprovidedbyaclass

5.Whatisthesignatureofanoperation?

（a）Theoperation’sname

（b）Theoperation’sfunctionorsubroutine

（c）Theoperation’sname,parameters,andreturnvalue

（d）Theobject’sinterface

6.Whatistheinterfaceofaclass?

（a）Thesignatureofaclass

（b）Thespecificationofoperationsprovidedbytheclass

（c）Theinternalsoftheclass

（d）Theimplementationoftheclass

7.Whatisanattribute?

（a）Adescriptionofaclass

（b）Aninternalpropertyofaclass

（c）Adataitemheldbyaclass

（d）Aparameterofaclass

8.Whatisinformationhidinginsoftwaredesign?

（a）Hidinginformationsothatitcannotbefound

（b）Hidingadesigndecisionthatisconsideredlikelytochange

（c）Hidinginformationtomakeitsecure

（d）Encapsulatingdatainaclass

9.Whatisdataabstraction?

（a）Anothernameforinformationhiding

（b）Encapsulatingdatasothatitsstructureishidden

（c）Storingdatainadatabase

（d）Storingdatainadatastructure

10.Whatisinheritance?

（a）Amechanismforinheritingcharacteristicsfromaparent

（b）Amechanismforsharingandreusingcodebetweenclasses

（c）Amechanismforsharingdatabetweenclasses

（d）Amechanismforhidinginformationbetweenclasses

Chapter5

EXERCISES

Thefollowingquestionsrelatetothesoftwaremodelinganddesignmethod（COMET）describedinthisbook.

Multiple-choicequestions:

Foreachquestion,chooseoneoftheanswers.

1.Whatiscarriedoutduringrequirementsmodeling?

（a）Functionalrequirementsofthesystemaredescribedintermsoffunctions,inputs,andoutputs.

（b）Functiona