publicclassfoo{staticStrings;publicstaticvoidmain(String[]args){system.out.printIn(s=”＋s);}}Whatistheresult?()A.Thecodecompilesand“s=”isprinted.B.Thecodecompilesand“s=null”isprinted.C.Thecodedoesnotcompilebecausestringsisnotinitialized.D.Thecodedoesnotcom

题目
publicclassfoo{staticStrings;publicstaticvoidmain(String[]args){system.out.printIn(s=”＋s);}}Whatistheresult?()

A.Thecodecompilesand“s=”isprinted.

B.Thecodecompilesand“s=null”isprinted.

C.Thecodedoesnotcompilebecausestringsisnotinitialized.

D.Thecodedoesnotcompilebecausestringscannotbereferenced.

E.Thecodecompiles，butaNullPointerExceptionisthrownwhentoStringiscalled.

相似考题

1.publicclassFoo{publicvoidmain(String[]args){system.out.printIn(HelloWorld.”);}}Whatistheresult?()A.Anexceptionisthrown.B.Thecodedoesnocompile.C.“HelloWorld.”Isprintedtotheterminal.D.Theprogramexitswithoutprintinganything.

2.publicclassX{publicstaticvoidmain(String[]args){Strings1=newString(true”);Booleanb1=newBoolean(true);if(s2.equals(b1)){System.out.printIn(Equal”);}}}Whatistheresult?()A.Theprogramrunsandprintsnothing.B.Theprogramrunsandprints“Equal”C.Anerroratline5causescompilationtofail.D.Theprogramrunsbutabortswithanexception.

3.importjava.io.IOException；publicclassExceptionTest（publicstaticvoidmain（String[]args）try（methodA（）；）catch（IOExceptione）（system.out.printIn（CaughtIOException”）；）catch（Exceptione）（system.out.printIn（CaughtException”）；））publicvoidmethodA（）{thrownewIOException（）；}Whatistheresult？（）A.Thecodewillnotcompile.B.Theoutputiscaughtexception.C.TheoutputiscaughtIOException.D.Theprogramexecutesnormallywithoutprintingamessage.

4.publicclassX{publicstaticvoidmain(String[]args){strings=newstring(Hello”);modify(s);System.out.printIn(s);}publicstaticvoidmodify(Strings){s＋=world!”;}}Whatistheresult?()A.Theprogramrunsandprints“Hello”B.Anerrorcausescompilationtofail.C.Theprogramrunsandprints“Helloworld!”D.Theprogramrunsbutabortswithanexception.

参考答案和解析
参考答案：B
更多“publicclassfoo{staticStrings;publicstaticvoidmain(String[]args){system.out.printIn(s=”＋s);}}Whatistheresult?() ”相关问题

  • 第1题：

    publicclassfoo{publicstaticvoidmain(string[]args)try{return;}finally{system.out.printIn(Finally”);}}Whatistheresult?()

    A.Theprogramrunsandprintsnothing.

    B.Theprogramrunsandprints“Finally”

    C.Thecodecompiles，butanexceptionisthrownatruntime.

    D.Thecodewillnotcompilebecausethecatchblockismissing.


    参考答案：B

  • 第2题：

    publicclassFoo{publicstaticvoidmain(String[]args){try{return;}finally{System.out.println(Finally”);}}}Whatistheresult?()

    A.Finally

    B.Compilationfails.

    C.Thecoderunswithnooutput.

    D.Anexceptionisthrownatruntime.


    参考答案：A

  • 第3题：

    publicclassfoo{publicstaticvoidmain(Stringargs){Strings;system.out.printIn(s=”＋s);}}Whatistheresult?()

    A.Thecodecompilesand“s=”isprinted.

    B.Thecodecompilesand“s=null”isprinted.

    C.Thecodedoesnotcompilebecausestringsisnotinitialized.

    D.Thecodedoesnotcompilebecausestringscannotbereferenced.

    E.Thecodecompiles，butaNullPointerExceptionisthrownwhentoStringiscalled.


    参考答案：C

  • 第4题：

    publicclassfoo{publicstaticvoidmain(String[]args){Strings;system.out.printIn(s=”＋s);}}Whatistheresult?()

    A.Thecodecompilesand“s=”isprinted.

    B.Thecodecompilesand“s=null”isprinted.

    C.Thecodedoesnotcompilebecausestringsisnotinitialized.

    D.Thecodedoesnotcompilebecausestringscannotbereferenced.

    E.Thecodecompiles，butaNullPointerExceptionisthrownwhentoStringiscalled.


    参考答案：C

  • 第5题：

    Given:310－025LeadingthewayinITtestingandcertificationtools,www.testking.com－48－publicclassfoo{staticStrings;publicstaticvoidmain(Stringargs){system.out.printIn(s=”＋s);}}Whatistheresult?()

    A.Thecodecompilesand“s=”isprinted.

    B.Thecodecompilesand“s=null”isprinted.

    C.Thecodedoesnotcompilebecausestringsisnotinitialized.

    D.Thecodedoesnotcompilebecausestringscannotbereferenced.

    E.Thecodecompiles，butaNullPointerExceptionisthrownwhentoStringiscalled.


    参考答案：B

相关内容