网友您好, 请在下方输入框内输入要搜索的题目:

题目内容 (请给出正确答案)

publicstaticvoidmain(String[]args){try{args=null;args[0]=test”;System.out.println(args[0]);}catch(Exceptionex){System.out.println(”Exception”);}catch(NullPointerExceptionnpe){System.out.println(”NullPointerException”);}}Whatistheresult?()

A.test

B.Exception

C.Compilationfails.

D.NullPointerException


参考答案

更多 “ publicstaticvoidmain(String[]args){try{args=null;args[0]=test”;System.out.println(args[0]);}catch(Exceptionex){System.out.println(”Exception”);}catch(NullPointerExceptionnpe){System.out.println(”NullPointerException”);}}Whatistheresult?()A.testB.ExceptionC.Compilationfails.D.NullPointerException ” 相关考题
考题 public static void main(String[]args){String str=null;if(str==null){System.out.println(null);}else(str.length()==0){System.out.println(zero);}else{System.out.println(some);}}What is the result?()A.nullB.zeroC.someD.Compilationfails.E.Anexceptionisthrownatruntime.

考题 publicstaticvoidmain(String[]args){Stringstr=null?;if(str==null){System.out.println(”null”);}else(str.length()==0){System.out.println(”zero”);}else{System.out.println(”some”);}}Whatistheresult?() A.nullB.zeroC.someD.Compilationfails.E.Anexceptionisthrownatruntime.

考题 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(ix0)System.out.println(args[ix]);}CODEFRAGMENTe:publicstaticvoidmain(Stringargs[]){try{System.out.println(args[args.length-1]);}catch(NullPointerExceptione){}}

考题 publicclassTest{publicstaticvoidmain(String[]args){System.out.println(args.length4args[4].equals(-d”));}}Iftheprogramisinvokedusingthecommandline:javaTestOneTwoThree–dWhatistheresult?() A.trueB.falseC.Compilationfails.D.Anexceptionisthrownatruntime.

考题 publicclassAlpha{publicstaticvoidmain(string[]args){if(args.length==2){if(args.[0].equalsIgnoreCase(-b”))System.out.println(newBoolean(args[1]));}}}Andthecodeisinvokedbyusingthecommand:javaAlpha–bTRUEWhatistheresult?()A.trueB.nullC.falseD.Compilationfails.E.Thecoderunswithnooutput.F.Anexceptionisthrownatruntime.

考题 publicclassFoo{publicvoidmain(String[]args){System.out.println(Hello”+args[0]);}}Whatistheresultifthiscodeisexecutedwiththecommandline?() A.HelloB.HelloFooC.HelloworldD.Compilationfails.E.Thecodedoesnotrun.

考题 interface A{int x = 0;}class B{int x =1;}class C extends B implements A {public void pX(){System.out.println(x);}public static void main(String[] args) {new C().pX();}}

考题 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)

考题 main()方法的正确定义方式是()。A.public static void main (String [ ] args ) { new NameSurfer().start (args ) ; }B.public static main (String [ ] args ) { new NameSurfer().start (args ) ; }C.public void main (String [ ] args ) { new NameSurfer().start (args ) ; }D.public static void main (String [ ] args ) { NameSurfer().start (args ) ; }