计算机英语（第二版）课件chapter10.pdf

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ComputerScienceinEnglish
TeachingAssistedCourseware
DesiComputerScienceinEnglish
TeachingAssistedCourseware
DesignedandProgrammedBy
JiangTongqiang
MiaoTianshunComputerScienceinEnglish
-readingQuestions

Object-OrientedTechnology

-readingQuestions
?Describe
?
advantagesofencapsulation.
ReferenceKey:
?Describethe
Encapsulationisthepackagingofseveralitems
advantagesofpolymorphism.
,both
attributesandbehavioroftheobjectare

objectinUML?’’s

object’-readingQuestions
?Describethe
advantagesofpolymorphism.
ReferenceKey:
Polymorphismmeans“manyforms”.Applied
toobject-orientedtechniques,itmeansthata
behaviormaybecompleteddifferentlyfor
differentobjects/classes.
Therequestingobjectknowswhatservice(or
behavior)torequestandfromwhichobject.
However,therequestingobjectdoesnotneed
-readingQuestions

definedinUML?Describeeachofthem.
ReferenceKey:
Intermsoftheviewsofamodel,theUML
definesthefollowinggraphicaldiagrams:
–Usecasediagram.
–Classdiagram.
–Statechartdiagram.
–Activitydiagram.
–Interactiondiagrams.
–
,
attributeshaveinvolvedtoincludemore
thansimpledatacharacteristicsas
representedinthepreviousexample.
介词短语withadvancesintechnology作状语,表
原因/伴随。asrepresentedintheprevious
example作定语,修饰主句所说的情况。

packagingtheinformation