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最新SUN CERTIFIED PROGRAMMER FOR JAVAtm 2 PLATFORM 1.2考试大纲
SUNCERTIFIEDPROGRAMMERFORJAVA[tm]2PLATFORM1.2
SECTION1:DECLARATIONSANDACCESSCONTROL
Writecodethatdeclares,constructs,andinitializesarraysofanybasetypeusinganyofthepermittedformsbothfordeclarationandforinitialization.
Declareclasses,innerclasses,methods,instancevariables,staticvariables,andautomatic(methodlocal)variablesmakingappropriateuseofallpermittedmodifiers(suchaspublic,final,static,abstract,andsoforth).
Statethesignificanceofeachofthesemodifiersbothsinglyandincombination,andstatetheeffectofpackagerelationshipsondeclareditemsqualifiedbythesemodifiers.
Foragivenclass,determineifadefaultconstructorwillbecreated,andifso,statetheprototypeofthatconstructor.
Statethelegalreturntypesforanymethodgiventhedeclarationsofallrelatedmethodsinthisorparentclasses.
SECTION2:FLOWCONTROLANDEXCEPTIONHANDLING
Writecodeusingifandswitchstatementsandidentifylegalargumenttypesforthesestatements.
Writecodeusingallformsofloopsincludinglabeledandunlabeleduseofbreakandcontinue,andstatethevaluestakenbyloopcontrolvariablesduringandafterloopexecution.
Writecodethatmakesproperuseofexceptionsandexceptionhandlingclauses(try,catch,finally)anddeclaresmethodsandoverridingmethodsthatthrowexceptions.
SECTION3:GARBAGECOLLECTION
Statethebehaviorthatisguaranteedbythegarbagecollectionsystem,andwritecodethatexplicitlymakesobjectseligibleforcollection.
SECTION4:LANGUAGEFUNDAMENTALS
Identifycorrectlyconstructedsourcefiles,packagedeclarations,importstatements,classdeclarations(ofallformsincludinginnerclasses),interfacedeclarationsandimplementations(forjava.lang.Runnableorotherinterfacedescribedinthetest),methoddeclarations(includingthemainmethodthatisusedtostartexecutionofaclass),variabledeclarationsandidentifiers.
Statethecorrespondencebetweenindexvaluesintheargumentarraypassedtoamainmethodandcommandlinearguments.
IdentifyallJavaprogramminglanguagekeywordsandcorrectlyconstructedidentifiers.
Statetheeffectofusingavariableorarrayelementofanykindwhennoexplicitassignmenthasbeenmadetoit.
StatetherangeofallprimitivedatatypesanddeclareliteralvaluesforStringandallprimitivetypesusingallpermittedformats,bases,andrepresentations.
SECTION5:OPERATORSANDASSIGNMENTS
Determinetheresultofapplyinganyoperator,includingassignmentoperators,instanceof,andcaststooperandsofanytype,class,scope,oraccessibility,oranycombinationofthese.
Determinetheresultofapplyingthebooleanequals(Object)methodtoobjectsofanycombinationoftheclassesjava.lang.String,java.lang.Boolean,andjava.lang.Object.
Inanexpressioninvolvingtheoperators&,|,&&,||,andvariablesofknownvalues,statewhichoperandsareevaluatedandthevalueoftheexpression.
Determinetheeffectuponobjectsandprimitivevaluesofpassingvariablesintomethodsandperformingassignmentsorothermodifyingoperationsinthatmethod.
SECTION6:OVERLOADING,OVERRIDING,RUNTIMETYPE,ANDOBJECTORIENTATION
Statethebenefitsofencapsulationinobjectorienteddesignandwritecodethatimplementstightlyencapsulatedclassesandtherelationships"isa"and"hasa".
Writecodetoinvokeoverriddenoroverloadedmethodsandparentaloroverloadedconstructors,anddescribetheeffectofinvokingthesemethods.
Writecodetoconstructinstancesofanyconcreteclassincludingnormaltoplevelclasses,innerclasses,staticinnerclasses,andanonymousinnerclasses.
SECTION7:THREADS
Writecodetodefine,instantiate,andstartnewthreadsusingbothjava.lang.Threadandjava.lang.Runnable.
Recognizeconditionsthatmightpreventathreadfromexecuting.
Writecodeusingsynchronized,wait,notify,ornotifyAll,toprotectagainstconcurrentaccessproblemsandtocommunicatebetweenthreads.
Definetheinteractionbetweenthreadsandbetweenthreadsandobjectlockswhenexecutingsynchronized,wait,notify,ornotifyAll.
SECTION8:THEJAVA.AWTPACKAGE
Writecodeusingcomponent,container,andLayoutManagerclassesofthejava.awtpackagetopresentaGraphicalUserInterfacewithspecifiedappearanceandresizebehavior,anddistinguishtheresponsibilitiesoflayoutmanagersfromthoseofcontainers.
Writecodetoimplementlistenerclassesandmethods,andinlistenermethods,extractinformationfromtheeventtodeterminetheaffectedcomponent,mouseposition,nature,andtimeoftheevent.
Statetheeventclassnameforanyspecifiedeventlistenerinterfaceinthejava.awt.eventpackage.
SECTION9:THEJAVA.LANGPACKAGE
Writecodeusingthefollowingmethodsofthejava.lang.Mathclass:abs,ceil,floor,max,min,random,round,sin,cos,tan,andsqrt.
Describethesignificanceoftheimmutabilityofstringobjects.
SECTION10:THEJAVA.UTILPACKAGE
Makeappropriateselectionofcollectionclasses/interfacestosuitspecifiedbehaviorrequirements.
SECTION11:THEJAVA.IOPACKAGE
Writecodethatusesobjectsofthefileclasstonavigateafilesystem.
WritecodethatusesobjectsoftheclassesInputStreamReaderandoutputStreamWritertotranslatebetweenUnicodeandeitherplatformdefaultorISO8859-1characterencodingandDistinguishbetweenconditionsunderwhichplatformdefaultencodingconversionshouldbeusedandconditionsunderwhichaspecificconversionshouldbeused.
SelectvalidconstructorargumentsforFilterInputStreamandFilterOutputStreamsubclassesfromalistofclassesinthejava.io.package.
Writeappropriatecodetoread,writeandupdatefilesusingFileInputStream,FileOutputStream,andRandomAccessFileobjects.
DescribethepermanenteffectsonthefilesystemofconstructingandusingFileInputStream,FileOutputStream,andRandomAccessFileobjects.
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