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”isprin

题目
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.

相似考题

1.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.

2.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.

3.publicclassTest{publicstaticvoidmain(Stringargs){stringfoo=blue”;stringbar=foo;foo=green”;System.out.printIn(bar);}}Whatistheresult?()A.Anexceptionisthrown.B.Thecodewillnotcompile.C.Theprogramprints“null”D.Theprogramprints“blue”E.Theprogramprints“green”

4.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.

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

  • 第1题：

    publicclassX{publicstaticvoidmain(Stringargs){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：A

  • 第2题：

    importjava.io.IOException；publicclassExceptionTest（publicstaticvoidmain（Stringargs）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.


    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：

    publicclassX{publicstaticvoidmain(Stringargs){Strings1=newString(true”);Booleanb1=newBoolean(true);if(s2.equals(b1)){System.out.printIn(Equal”);}}}Whatistheresult?()

    A.Theprogramrunsandprintsnothing.

    B.Theprogramrunsandprints“Equal”

    C.Anerroratline5causescompilationtofail.

    D.Theprogramrunsbutabortswithanexception.


    参考答案：A

  • 第5题：

    publicclassfoo{publicstaticvoidmain(stringargs)try{return;}finally{system.out.printIn(Finally”);}}Whatistheresult?()

    A.Theprogramrunsandprintsnothing.

    B.Theprogramrunsandprints“Finally”

    C.Thecodecompiles，butanexceptionisthrownatruntime.

    D.Thecodewillnotcompilebecausethecatchblockismissing.


    参考答案：B

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