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publicclassTest{publicenumDogs{collie，harrier，shepherd}；publicstaticvoidmain（String[]args）{DogsmyDog=Dogs.shepherd；switch（myDog）{casecollie：System.out.print（”collie）；casedefault：System.out.print（”retriever）；caseharrier：System.out.print（”harrier）；}}}Whatis

题目

publicclassTest{publicenumDogs{collie，harrier，shepherd}；publicstaticvoidmain（String[]args）{DogsmyDog=Dogs.shepherd；switch（myDog）{casecollie：System.out.print（”collie）；casedefault：System.out.print（”retriever）；caseharrier：System.out.print（”harrier）；}}}Whatistheresult？（）

A.harrier

B.shepherd

C.retriever

D.Compilationfails.

E.retrieverharrier

F.Anexceptionisthrownatruntime.

相似考题

1.publicclassTest{publicenumDogs{collie，harrier}；publicstaticvoidmain（String[]args）{DogsmyDog=Dogs.collie；switch（myDog）{casecollie：System.out.print（”collie）；caseharrier：System.out.print（”harrier）；}}}Whatistheresult？（）A.collieB.harrierC.Compilationfails.D.collieharrierE.Anexceptionisthrownatruntime.

2.publicclasstest(publicstaticvoidmain(string[]args){stringfoo=args[1];stringfoo=args[2];stringfoo=args[3];})Andcommandlineinvocation:JavaTestredgreenblueWhatistheresult?()A.Bazhasthevalueof“”B.BazhasthevalueofnullC.Bazhasthevalueof“red”D.Bazhasthevalueof“blue”E.Baxhasthevalueof“green”F.Theprogramthrowsanexception.

3.publicclassTest{publicstaticvoidmain(String[]args){Stringstr=NULL;System.out.println(str);}}Whatistheresult?()A.NULLB.Compilationfails.C.Thecoderunswithnooutput.D.Anexceptionisthrownatruntime.

4.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

更多“publicclassTest{publicenumDogs{collie,harrier,shepherd};publicstaticvoidmain(String[]args) ”相关问题

  • 第1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2题：

    publicclassTest{publicstaticvoidmain(String[]args){System.out.println(args.length>4&&args[4].equals(－d”));}}Iftheprogramisinvokedusingthecommandline:javaTestOneTwoThree–dWhatistheresult?()

    A.true

    B.false

    C.Compilationfails.

    D.Anexceptionisthrownatruntime.


    参考答案：D
    ThecorrectanswertothisquestionisD.Theargs[4]generatesaruntimeexceptionerrorbecausethereareonly4stringsandtheexpressionargs[4]printsthe5thStringbutlikeitwassaidearlier,thereareonly4strings.

  • 第3题：

    下面的程序会抛出什么异常类型？ public class Test { public static void main（String[] args) { Object o = new Object（); String d = （String)o; } }

    A．ArithmeticException

    B．ArrayIndexOutOfBoundsException

    C．StringIndexOutOfBoundsException

    D．ClassCastException


    E

  • 第4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

  • 第5题：

    以下哪个main方法是正确的？

    A．public static void main(string[] args)

    B．public static void Main(String[] args)

    C．public static void main(String[] args)

    D．public static main(String[] args)

    E．public void main(String[] args)


    public static void main(String[] args)

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