SCJP模擬試題（2）

1、姓名：_ 班級：_ 學號：_-密-封 -線- scjp模擬試題（2）考試時間：120分鐘 考試總分：100分題號一二三四五總分分數(shù)遵守考場紀律，維護知識尊嚴，杜絕違紀行為，確?？荚嚱Y(jié)果公正。q36whichofthefollowingmethodsaredefinedonthegraphicsclass：drawline（int，int，int，int） drawimage（image，int，int，imageobservq36whichofthefollowingmethodsaredefinedonthegraphicsclass：drawline（int，int，int，int）dra

2、wimage（image，int，int，imageobserver）drawstring（string，int，int）add（component）；setvisible（boolean）；setlayout（object）；selectallcorrectanswersq37whichofthefollowinglayoutmanagershonoursthepreferredsizeofacomponent：cardlayoutflowlayoutborderlayoutgridlayoutselectallcorrectanswersq38giventhefollowingcodewh

3、atistheeffectofabeing5：publicclasstestpublicvoidadd（inta）loop：for（inti1；i3；i）for（intj1；j3；j）if（a5）breakloop；systemoutprintln（i*j）；generatearuntimeerrorthrowanarrayindexoutofboundsexceptionprintthevalues：1，2，2，4producesnooutputselectthemostappropriateanswerq39whatistheeffectofissuingawait（ ）methodona

4、nobjectifanotify（ ）methodhasalreadybeensenttothatobjectthenithasnoeffect#p#theobjectissuingthecalltowait（ ）willhaltuntilanotherobjectsendsanotify（ ）ornotifyall（ ）methodanexceptionwillberaisedtheobjectissuingthecalltowait（ ）willbeautomaticallysynchronizedwithanyotherobjectsusingthereceivingobjectsele

5、ctthemostappropriateanswerq40thelayoutofacontainercanbealteredusingwhichofthefollowingmethods：setlayout（alayoutmanager）；addlayout（alayoutmanager）；layout（alayoutmanager）；setlayoutmanager（alayoutmanager）；selectallcorrectanswersq41usingaflowlayoutmanager，whichisthecorrectwaytoaddelementstoacontainer：ad

6、d（component）；add（”center”，component）；add（x，y，component）；set（component）；selectthemostappropriateanswerq42giventhatabuttoncangenerateanactioneventwhichlistenerwouldyouexpecttohavetoimplement，inaclasswhichwouldhandlethisevent?focuslistenercomponentlistenerwindowlisteneractionlisteneritemlistenerselectt

7、hemostappropriateanswerq43whichofthefollowing，arevalidreturntypes，forlistenermethods：booleanthetypeofeventhandledvoidcomponentselectthemostappropriateanswerq44assumingwehaveaclasswhichimplementstheactionlistenerinterface，whichmethodshouldbeusedtoregisterthiswithabutton?addlistener（*）；addactionlisten

8、er（*）；addbuttonlistener（*）；setlistener（*）；selectthemostappropriateanswerq45inordertocausethepaint（graphics）methodtoexecute，whichofthefollowingisthemostappropriatemethodtocall：paint（ ）repaint（ ）paint（graphics）update（graphics）noneyoushouldnevercausepaint（graphics）toexecuteselectthemostappropriateanswe

9、rq46whichofthefollowingillustratesthecorrectwaytopassaparameterintoanapplet：utstreamreader（newfileinputstream（”data”）；#p#newinputstreamreader（newfilereader（”data”）；newinputstreamreader（newbufferedreader（”data”）；newinputstreamreader（”data”）；newinputstreamreader（systemin）；selectallcorrectanswersq48wha

10、tisthepermanenteffectonthefilesystemofwritingdatatoanewfilewriter（”report”），giventhefilereportalreadyexists?thedataisappendedtothefilethefileisreplacedwithanewfileanexceptionisraisedasthefilealreadyexiststhedataiswrittentorandomlocationswithinthefileselectthemostappropriateanswerq49whatistheeffectofaddingthesixthelementtoavectorcreatedinthefollowingmanner：newvector（5，10）；anindexoutofboundsexceptionisraisedthevectorgrowsinsizetoacapacityof10elementsthevectorgrowsinsizetoacapacityof15elementsnothin