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publicstaticvoidappend(Listlist){list.add(”0042”);}12.publicstaticvoidmain(String[]args){13.ListintList=newArrayList();14.append(intList);15.System.out.println(intList.get(0));16.}Whatistheresult?()
A.42
B.0042
C.Anexceptionisthrownatruntime.
D.Compilationfailsbecauseofanerrorinline13.
E.Compilationfailsbecauseofanerrorinline14.
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更多 “ publicstaticvoidappend(Listlist){list.add(”0042”);}12.publicstaticvoidmain(String[]args){13.ListintList=newArrayList();14.append(intList);15.System.out.println(intList.get(0));16.}Whatistheresult?() A.42B.0042C.Anexceptionisthrownatruntime.D.Compilationfailsbecauseofanerrorinline13.E.Compilationfailsbecauseofanerrorinline14. ” 相关考题
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publicstaticvoidsearch（Listlist）{list.clear（）；list.add（”b”）；list.add（”a”）；list.add（”c”）；System.out.println（Collections.binarySearch（list，a”））；}WhatistheresultofcallingsearchwithavalidListimplementation？（）A.0B.1C.aD.bE.cF.Theresultisundefined.
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11.classConverter{12.publicstaticvoidmain（String[]args）{13.Integeri=args[0]；14.intj=12；15.System.out.println（”Itis+（j==i）+thatj==i.”）；16.}17.}WhatistheresultwhentheprogrammerattemptstocompilethecodeandrunitwiththecommandjavaConverter12？（）A.Itistruethatj==i.B.Itisfalsethatj==i.C.Anexceptionisthrownatruntime.D.Compilationfailsbecauseofanerrorinline13.
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publicstaticvoidmain（String[]args）{try{args=null；args[0]=test”；System.out.println（args[0]）；}catch（Exceptionex）{System.out.println（”Exception”）；}catch（NullPointerExceptionnpe）{System.out.println（”NullPointerException”）；}}Whatistheresult？（）A.testB.ExceptionC.Compilationfails.D.NullPointerException
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publicstaticIteratorreverse（Listlist）{Collections.reverse（list）；returnlist.iterator（）；}publicstaticvoidmain（String[]args）{Listlist=newArrayList（）；list.add（”1”）；list.add（”2”）；list.add（”3”）；for（Objectobj：reverse（list））System.out.print（obj+，”）；}Whatistheresult？（）A.3，2，1，B.1，2，3，C.Compilationfails.D.Thecoderunswithnooutput.E.Anexceptionisthrownatruntime.
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publicclassTest{privatestaticint[]x;publicstaticvoidmain(String[]args){System.out.println(x[0]);}}Whatistheresult?()
A.0B.nullC.Compilationfails.D.ANullPointerExceptionisthrownatruntime.E.AnArrayIndexOutOfBoundsExceptionisthrownatruntime.
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publicclassTest{publicstaticvoidmain(String[]args){intx=0;assert(x>0):“assertionfailed”;System.out.println(“finished”);}}Whatistheresult?()
A.finishedB.Compilationfails.C.AnAssertionErroristhrown.D.AnAssertionErroristhrownandfinishedisoutput.
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