publicclassTest{publicstaticvoidmain(String[]args){booleanassert=true;if(assert){System.out.println(”assertistrue”);}}}Given:javac－source1.3Test.javaWhatistheresult?()A.Compilationfails.B.Compilationsucceedswitherrors.C.Compilationsucceedswithwarnings.D.C

题目
publicclassTest{publicstaticvoidmain(String[]args){booleanassert=true;if(assert){System.out.println(”assertistrue”);}}}Given:javac－source1.3Test.javaWhatistheresult?()

A.Compilationfails.

B.Compilationsucceedswitherrors.

C.Compilationsucceedswithwarnings.

D.Compilationsucceedswithoutwarningsorerrors.

相似考题

1.下面程序执行后，输出的结果是( )。 public class Test { public static void main (String[] )args) { boolean m=true； if(m==false) System.out.println("假")； else if(m====true) System.out.println("真")； else System.out.println ("错误")； } }A．真B．假C．错误D．编译出错

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

3.publicclassTest{privatestaticint[]x;publicstaticvoidmain(String[]args){System.out.println(x[0]);}}Whatistheresult?()A.0B.nullC.Compilationfails.D.ANullPointerExceptionisthrownatruntime.E.AnArrayIndexOutOfBoundsExceptionisthrownatruntime.

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

更多“publicclassTest{publicstaticvoidmain(String[]args){booleanassert=true;if(assert){System.out.println(”assertistrue”);}}}Given:javac－source1.3Test.javaWhatistheresult?() ”相关问题

  • 第1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2题：

    publicclassTest{publicstaticvoidmain(String[]args){intx=0;assert(x>0):“assertionfailed”;System.out.println(“finished”);}}Whatistheresult?()

    A.finished

    B.Compilationfails.

    C.AnAssertionErroristhrown.

    D.AnAssertionErroristhrownandfinishedisoutput.


    参考答案：A

    Thisquestionisabittrickybecauseitlacksthefollowinginformation:Itshouldincludeastatementthatsayswhetherornotassertionsareenabled.Iftheyareindeedenabled,the
    correctionanswerisC.butiftheyarenot,thecorrectanswerisA.Assertionsarenotenabledbydefaultsoifthequestionisnotchanged,themostlogicalanswerisA.

  • 第3题：

    2、1、写出以下程序的输出内容。 public class Test { public static void changeValue（int value){ value = 0; } public static void main（String[] args) { int value = 2010; changeValue（value); System.out.println（value); } }


    2010

  • 第4题：

    publicclassTest{publicstaticvoidmain(String[]args){intx=0;assert(x>0)?assertionfailed”:assertionpassed”;System.out.println(Finished”);}}Whatistheresult?()

    A.finished

    B.Compilationfails.

    C.AnAssertionErroristhrownandfinishedisoutput.

    D.AnAssertionErroristhrownwiththemessage“assertionfailed”.

    E.AnAssertionErroristhrownwiththemessage“assertionpassed”.


    参考答案：B

  • 第5题：

    执行下列程序段之后，变量b的值为( )。 public class Test { public static void main (String[] args) { int i = 12; int j = 24; boolean b1 = true; booleanb=(j%i==0)&&(! b1) || (j/i! =2); System. out. println (B); } }

    A．true

    B．false

    C．0

    D．1


    正确答案：B
    解析：表达式执行次序为：首先做!b1得到false；然后做j%i==0得到true；再做j/i!=2得到false；然后做&&得到false；最后是||，得到false。

相关内容