publicclassTest{publicstaticvoidmain(Stringargs){Stringfoo=args[1];Stringbar=args;Stringbaz=args;System.out.printIn(baz=”＋baz);}}Andtheoutput:Baz=2Whichcommandlineinvocationwillproducetheoutput?()A.JavaTest2222B.JavaTest1234C.JavaTest4242D.JavaTest4321

题目
publicclassTest{publicstaticvoidmain(Stringargs){Stringfoo=args[1];Stringbar=args;Stringbaz=args;System.out.printIn(baz=”＋baz);}}Andtheoutput:Baz=2Whichcommandlineinvocationwillproducetheoutput?()

A.JavaTest2222

B.JavaTest1234

C.JavaTest4242

D.JavaTest4321

相似考题

1.以下是JAVA中正确的入口方法是?()A.publicstaticvoidmain（String[]args）{}B.publicstaticvoidmain（Stringargs）{}C.publicvoidmain（String[]args）{}D.publicstaticintmain（String[]args）{}

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

3.publicclassTest{publicstaticvoidmain（String[]args）{Stringfoo=args[1]；Stringbar=args[2]；Stringbaz=args[3]；System.out.printIn（baz=”+baz）；}}Andtheoutput：Baz=2Whichcommandlineinvocationwillproducetheoutput？（）A.JavaTest2222B.JavaTest1234C.JavaTest4242D.JavaTest4321

4.Whichcodefragmentswillsucceedinprintingthelastargumentgivenonthecommandlinetothestandardoutput，andexitgracefullywithnooutputifnoargumentsaregiven？（）CODEFRAGMENTa：publicstaticvoidmain（Stringargs[]）{if（args.length!=0）System.out.println（args[args.length-1]）；}CODEFRAGMENTb：publicstaticvoidmain（Stringargs[]）{try{System.out.println（args[args.length]）；}catch（ArrayIndexOutOfBoundsExceptione）{}}CODEFRAGMENTc：publicstaticvoidmain（Stringargs[]）{intix=args.length；Stringlast=args[ix]；if（ix!=0）System.out.println（last）；}CODEFRAGMENTd：publicstaticvoidmain（Stringargs[]）{intix=args.length-1；if（ix>0）System.out.println（args[ix]）；}CODEFRAGMENTe：publicstaticvoidmain（Stringargs[]）{try{System.out.println（args[args.length-1]）；}catch（NullPointerExceptione）{}}

参考答案和解析
参考答案：C
更多“publicclassTest{publicstaticvoidmain(Stringargs){Stringfoo=args[1];Stringbar=args;Stringbaz=args;System.out.printIn(baz=”＋baz);}}Andtheoutput:Baz=2Whichcommandlineinvocationwillproducetheoutput?() ”相关问题

  • 第1题：

    publicclasstest(publicstaticvoidmain(string[]args){stringfoo=args[1];stringfoo=args[2];stringfoo=args[3];})Andcommandlineinvocation:JavaTestredgreenblueWhatistheresult?()

    A.Bazhasthevalueof“”

    B.Bazhasthevalueofnull

    C.Bazhasthevalueof“red”

    D.Bazhasthevalueof“blue”

    E.Baxhasthevalueof“green”

    F.Theprogramthrowsanexception.


    参考答案：F

  • 第2题：

    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”


    参考答案：D

  • 第3题：

    下面程序执行后，baz的值应是______。 public class Test9 { public static void main(String[] args) { int index = 1; int fox[] = new int [3]; iht bar = fox [index]; int baz = bar + index; System.out.println(baz); } }

    A．0

    B．1

    C．2

    D．编译错误


    正确答案：B
    解析：int fox[]=new int[3]这时数组的每个元素都初始化为0，所以int baz=bar+index；，其实，这时bar的值为0，这样便有baz的值为1。

  • 第4题：

    publicclassTest{publicstaticvoidmain（String[]args）{Stringfoo=args[1]；Stringbar=args[2]；Stringbaz=args[3]；System.out.println（baz=+baz）；}}Andthecommandlineinvocation：javaTestredgreenblueWhatistheresult？（）

    A.baz=

    B.baz=null

    C.baz=blue

    D.Compilationfails.

    E.Anexceptionisthrownatruntime.


    参考答案：E
    Ajava.lang.ArrayIndexOutOfBoundsExceptionisthrownbecauseofline3,shouldbeargs[0].

  • 第5题：

    publicclasstest(publicstaticvoidmain(stringargs){stringfoo=args[1];stringfoo=args;stringfoo=args;})Andcommandlineinvocation:JavaTestredgreenblueWhatistheresult?()

    A.Bazhasthevalueof“”

    B.Bazhasthevalueofnull

    C.Bazhasthevalueof“red”

    D.Bazhasthevalueof“blue”

    E.Baxhasthevalueof“green”

    F.Theprogramthrowsanexception.


    参考答案：F

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