java双语教学考试试b卷及答案

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1、注意事项：请将各题答案按编号顺序填写到答题卷上，答在试卷上无效。一、单选题(本题共40小题，每小题1分，共40分〉1.Whatisthereturn-typeofthemethodsthatimplementtheMouseListenerinterface?A.booleanB.BooleanC.voidD.Point2.SelectvalididentifierofJava:A.%passwdB.3d_gameC.SchargeD.this3・WhichdeclaresanabstractmethodinanabstractJavaclass?IA.publicabstra

2、ctmethod();B.publicabstractvoidmethod();C.publicvoidabstractMethod(};D.publicabstractvoidmethod(){}4・Whichstatementaboutlisteneristrue?A・Mostcomponentunallowmultiplelistenerstobeadded・B.Ifmultiplelistenerbeaddtoasinglecomponent,theeventonlyaffectedonelistener.C.Componentdon'tallowmultiplelis

3、tenerstobeadd・0

4、PD・ThelistenermechanismallowsyoutocallanaddXxxxListenermethodasmanytimesasisneeded,specifyingasmanydifferentlistenersasyourdesignrequire・Whichmethodyoudefineasthestartingpointofnewthreadinaclassfromwhichnewthethreadcanbeexcution?A.publicvoidstart()B・publicvoidrun()C.publicvoi

5、dint()D.publicstaticvoidmain(Stringargsf])6.Whichstatementiscorrectlydeclareavariableawhichissuitableforreferingtoanarrayof50stringemptyobject?A.String[]aB.StringaC.chara[][]D.Stringa[50]7.WhichcannotbeaddedtoaContainer?A.aMenuB.aComponentC.aContainerD.anApplet8.Whichisthemain()methocPsretur

6、nofaapplication?A.StringB.byteC.charD.voidWhichiscorrectedargumentofmain()methodofapplication?A.StringargsB・Stringar[]Floats=newFloat(0.9F);Floatt=newFloat(0.9F);Doubleu=newDouble(0.9);C.Charargs[][]D.StringBufferargflWhichexpressionsresultistrue?A.s==tB.s.equals(t)C.s==uD.t.equals(u)11.Whic

7、harenotJavakeyword?A.gotoB.nullC.FALSE12・Runacorrectedclass:java-csAClassabcWhichstatementistrue?A.args[0]=''・cs'';B.args[lJ=,,abc";C.args[O[=''java'';13.Shortanswer:Thedecimalvalueofiis12,theoctalivalueis:A.14B.014C.0x1414.Shortanswer:Thedecimalvalueofiis7,thehexadecimalivalueis:A.7B

8、.07C.0x715.Whichistherangeofchar?A.-27-27-lB.0-216-lC.0-21616.Whichstatementistrueaboutaninnerclass?D.constD.args[0y;D.012D.x07D.0~28A.ItmustbeanonymousB.ItcannotimplementaninterfaceC.ItisonlyaccessibleintheenclosingclassD・Itcanaccessanyfinalvariab