publicclassA{2.publicStringdoit(intx,inty){3.returna”;4.}5.6.publicStringdoit(int...vals){7.returnb”;8.}9.}Given:25.Aa=newA();26.System.out.println(a.doit(4,5));Whatistheresult?()A.Line26prints“a”toSystem.out.B.Line26prints?b”toSystem.out.C.Anexceptionist

题目
publicclassA{2.publicStringdoit(intx,inty){3.returna”;4.}5.6.publicStringdoit(int...vals){7.returnb”;8.}9.}Given:25.Aa=newA();26.System.out.println(a.doit(4,5));Whatistheresult?()

A.Line26prints“a”toSystem.out.

B.Line26prints?b”toSystem.out.

C.Anexceptionisthrownatline26atruntime.

D.CompilationofclassAwillfailduetoanerrorinline6.

相似考题

1.Given:1.publicclassConstOver{2.publicconstOver(intx,inty,intz){3.}4.}WhichtwooverloadtheConstOverConstructor?()A.ConstOver（）{}B.protectedintConstOver（）{}C.privateConstOver（intz，inty，bytex）{}D.publicObjectConstOver（Intx，inty，intz）{}E.pubicvoidConstOver（bytex，bytey，bytez）{}

2.1.public classA{2.public String doit（intx，inty）{3.return"a"；4.}5.6.public String doit（int...vals）{7.return"b"；8.}9.}And：25.A a=new A（）；26.System.out.println（a.doit（4，5））；What is the result？（）A.Line 26 prints "a" to System.out.B.Line 26 prints "b" to System.out.C.An exception is thrown at line 26 at runtime.D.Compilation of class A will fail due to an error in line 6.

3.现有：1．classSuperFoo{2.SuperFoodoStuff（intx）{3.returnnewSuperFoo（）；4．}5.}6．7.classFooextendsSuperFoo{8．／／insertcodehere9.}和四个声明：FoodoStuff（intx）{returnnewFoo（）；}FoodoStuff（intx）{returnnewSuperFoo（）；}SuperFoodoStuff（intx）{returnnewFoo（）；}SuperFoodoStuff（inty）{returnnewSuperFoo（）；}分别插入到第8行，有几个可以通过编泽？（）

4.1.classSuperFo{2.SuperFodoStuff（intx）{3.returnnewSuperFo（）4.}5.}6.7.classFooextendsSuperFo{8.//insertcodehere9.}和四个声明：FoodoStuff（intx）{returnnewFoo（）；}FoodoStuff（intx）{returnnewSuperFoo（）；}SuperFoodoStuff（intx）{returnnewfoo（）；}SuperFoodoStuff（inty）{returnnewSuperFoo（）；}分别插入到第8行，有几个可以通过编译（）A.1B.2C.3D.4E.5

更多“publicclassA{2.publicStringdoit(intx,inty){3.returna”;4.}5.6.publicStringdoit(int...vals){7.returnb”;8.}9.}Given:25.Aa=newA();26.System.out.println(a.doit(4,5));Whatistheresult?() ”相关问题

  • 第1题：

    1.publicclassa{

    2.publicvoidmethod1（）{

    3.try{

    4.Bb=newb（）；

    5.b.method2（）；

    6.//morecodehere

    7.}catch（TestExceptionte）{

    8.thrownewRuntimeException（te）；

    9.}

    10.}

    11.}

    1.publicclassb{

    2.publicvoidmethod2（）throwsTestException{

    3.//morecodehere

    4.}

    5.}

    1.publicclassTestExceptionextendsException{

    2.}

    Given：

    31.publicvoidmethod（）{

    32.Aa=newa（）；

    33.a.method1（）；

    34.}

    WhichistrueifaTestExceptionisthrownonline3ofclassb？（）


    参考答案：B

  • 第2题：

    1.publicclassA{2.3.privateintcounter=0；4.5.publicstaticintgetInstanceCount（）{6.returncounter；7.}8.9.publicA（）{10.counter++；11.}12.13.}GiventhiscodefromClassB：25.Aa1=newA（）；26.Aa2=newA（）；27.Aa3=newA（）；28.System.out.printIn（A.getInstanceCount（））；Whatistheresult？（）

    A.CompilationofclassAfails.

    B.Line28printsthevalue3toSystem.out.

    C.Line28printsthevalue1toSystem.out.

    D.Aruntimeerroroccurswhenline25executes.

    E.Compilationfailsbecauseofanerroronline28.


    参考答案：A

  • 第3题：

    Given:Whichfivemethods,insertedindependentlyatline5,willcompile?()

    A.protectedintblipvert（longx）{return0；}

    B.protectedlongblipvert（intx）{return0；}

    C.privateintblipvert（longx）{return0；}

    D.privateintblipvert（intx）{return0；}

    E.publicintblipvert（intx）{return0；}

    F.protectedlongblipvert（longx）{return0；}

    G.protectedlongblipvert（intx，inty）{return0；}


    参考答案：A, C, E, F, G

  • 第4题：

    publicclassA{2.publicvoiddoit(){3.}4.publicStringdoit(){5.returna”;6.}7.publicdoubledoit(intx){8.return1.0;9.}10.}Whatistheresult?()

    A.Anexceptionisthrownatruntime.

    B.Compilationfailsbecauseofanerrorinline7.

    C.Compilationfailsbecauseofanerrorinline4.

    D.CompilationsucceedsandnoruntimeerrorswithclassAoccur.


    参考答案：C

  • 第5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

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