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publicclassBoxer1{2.Integeri;3.intx;4.publicBoxer1(inty){5.x=i＋y;6.System.out.println(x);7.}8.publicstaticvoidmain(String[]args){9.newBoxer1(newInteger(4));10.}11.}Whatistheresult?()A.Thevalue“4”isprintedatthecommandline.B.Compilationfailsbecauseofanerror

题目
publicclassBoxer1{2.Integeri;3.intx;4.publicBoxer1(inty){5.x=i＋y;6.System.out.println(x);7.}8.publicstaticvoidmain(String[]args){9.newBoxer1(newInteger(4));10.}11.}Whatistheresult?()

A.Thevalue“4”isprintedatthecommandline.

B.Compilationfailsbecauseofanerrorinline5.

C.Compilationfailsbecauseofanerrorinline9.

D.ANullPointerExceptionoccursatruntime.

E.ANumberFormatExceptionoccursatruntime.

F.AnIllegalStateExceptionoccursatruntime.

相似考题

1.1.classA{3.publicStringtoString（）{4.return4”；5.}6.}7.classBextendsA{8.publicStringtoString（）{9.returnsuper.toString（）+3”；10.}11.}12.publicclassTest{13.publicstaticvoidmain（String[]args）{14.System.out.printIn（newB（））；15.}16.}Whatistheresult()？A.Compilationsucceedsand4isprinted.B.Compilation……………isprinted.C.Anerroronline9causecompilationtofail.D.Anerroronline14causecompilationtofail.E.Compilationsucceedsbutanexceptionisthrownatline9.

2.public static void main（String[]args）{Integer i=new Integer（1）+new Integer（2）；switch（i）{case3：System.out.println（"three"）；break；default：System.out.println（"other"）；break；}}Whatistheresult？（）A.threeB.otherC.Anexceptionisthrownatruntime.D.Compilationfailsbecauseofanerroronline12.E.Compilationfailsbecauseofanerroronline13.F.Compilationfailsbecauseofanerroronline15.

3.现有：1.classHorseRadish｛2.//insertcodehere3.protectedHorseRadish（intx）｛4.System.out.println（"bokchoy"）；5.｝6.｝7.classWasabiextendsHorseRadish｛8.publicstaticvoidmain（String[]args）｛9.Wasabiw＝newWasabi（）；10.｝11.｝分别插入到第2行，哪两项允许代码编译并产生"bokchoy"输出结果？（）A.//justacommentB.protectedHorseRadish（）｛｝C.protectedHorseRadish（）｛this（42）；｝D.protectedHorseRadish（）｛newHorseRadish（42）；｝

4.classHorseRadish{2.／／insertcodehere3.protectedHorseRadish(intx){4.System.out.println(&qu1.classHorseRadish｛2.//insertcodehere3.protectedHorseRadish（intx）｛4.System.out.println（"bokchoy"）；5.｝6.｝7.classWasabiextendsHorseRadish｛8.publicstaticvoidmain（String[]args）｛9.Wasabiw＝newWasabi（）；10.｝11.｝分别插入到第2行，哪两项允许代码编译并产生"bokchoy"输出结果？（）A.//justacommentB.protectedHorseRadish（）｛｝C.protectedHorseRadish（）｛this（42）；｝D.protectedHorseRadish（）｛newHorseRadish（42）；｝

更多“publicclassBoxer1{2.Integeri;3.intx;4.publicBoxer1(inty){5.x=i＋y;6.System.out.println(x);7.}8.publicstaticvoidmain(String[]args){9.newBoxer1(newInteger(4));10.}11.}Whatistheresult?() ”相关问题

  • 第1题：

    1.publicclassSimpleCalc{

    2.publicintvalue；

    3.publicvoidcalculate（）{value+=7；}

    4.}

    And：

    1.publicclassMultiCalcextendsSimpleCalc{

    2.publicvoidcalculate（）{value-=3；}

    3.publicvoidcalculate（intmultiplier）{

    4.calculate（）；

    5.super.calculate（）；

    6.value*=multiplier；

    7.}

    8.publicstaticvoidmain（String[]args）{

    9.MultiCalccalculator=newMultiCalc（）；

    10.calculator.calculate（2）；

    11.System.out.println（”Valueis：+calculator.value）；

    12.}

    13.}

    Whatistheresult？（）


    参考答案：A

  • 第2题：

    publicclassIfTest(publicstaticvoidmain(string[]args){intx=3;inty=1;if(x=y)system.out.printIn(Notequal”);elsesystem.out.printIn(Equal”);})Whatistheresult?()

    A.Theoutputis“Equal”

    B.Theoutputin“NotEqual”

    C.Anerroratline5causescompilationtofall.

    D.Theprogramexecutesbutdoesnotprintamessage.


    参考答案：C

  • 第3题：

    publicclassA{2.voidA(){3.System.out.println(ClassA”);4.}5.publicstaticvoidmain(String[]args){6.newA();7.}8.}Whatistheresult?()

    A.ClassA

    B.Compilationfails.

    C.Anexceptionisthrownatline2.

    D.Anexceptionisthrownatline6.

    E.Thecodeexecuteswithnooutput.


    参考答案：E

  • 第4题：

    publicclassX{2.publicstaticvoidmain(String[]args){3.int[]a=newint[1]4.modify(a);5.System.out.printIn(a[0]);6.}7.8.publicstaticvoidmodify(int[]a){9.a[0]＋＋;10.}11.}Whatistheresult?()

    A.Theprogramrunsandprints“0”

    B.Theprogramrunsandprints“1”

    C.Theprogramrunsbutabortswithanexception.

    D.Anerror“possibleundefinedvariable”atline4causescompilationtofail.

    E.Anerror“possibleundefinedvariable”atline9causescompilationtofail.


    参考答案：B

  • 第5题：

    publicclassTest{privatestaticint[]x;publicstaticvoidmain(String[]args){System.out.println(x[0]);}}Whatistheresult?()

    A.0

    B.null

    C.Compilationfails.

    D.ANullPointerExceptionisthrownatruntime.

    E.AnArrayIndexOutOfBoundsExceptionisthrownatruntime.


    参考答案：D

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