scjp mock exam 4

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1、SCJPMockExam4SCJPMockExam1转载,对答案和题目谨做参考Question1)Whichofthefollowinglineswillcompilewithoutwarningorerror.1)floatf=1.3;2)charc="a";3)byteb=257;4)booleanb=null;5)inti=10;AnswertoQuestion1--------------------------------------------------------------------------

2、------Question2)WhatwillhappenifyoutrytocompileandrunthefollowingcodepublicclassMyClass{publicstaticvoidmain(Stringarguments[]){amethod(arguments);}publicvoidamethod(String[]arguments){System.out.println(arguments);System.out.println(arguments[1]);}}1)errorCan

3、'tmakestaticreferencetovoidamethod.2)errormethodmainnotcorrect3)errorarraymustincludeparameter4)amethodmustbedeclaredwithStringAnswertoQuestion2--------------------------------------------------------------------------------Question3)Whichofthefollowingwillcom

4、pilewithouterror1)importjava.awt.*;packageMypackage;classMyclass{}2)packageMyPackage;importjava.awt.*;classMyClass{}3)/*Thisisacomment*/packageMyPackage;importjava.awt.*;classMyClass{}AnswertoQuestion3-----------------------------------------------------------

5、---------------------Question4)Abytecanbeofwhatsize1)-128to1272)(-2power8)-1to2power83)-255to2564)dependsontheparticularimplementationoftheJavaVirtualmachineAnswertoQuestion4--------------------------------------------------------------------------------Questi

6、on5)Whatwillbeprintedoutifthiscodeisrunwiththefollowingcommandline?javamyproggoodmorningpublicclassmyprog{publicstaticvoidmain(Stringargv[]){System.out.println(argv[2])}}1)myprog2)good3)morning4)Exceptionraised:"java.lang.ArrayIndexOutOfBoundsException:2"Answe

7、rtoQuestion5--------------------------------------------------------------------------------Question6)WhichofthefollowingarekeywordsorreservedwordsinJava?1)if2)then3)goto4)while5)caseAnswertoQuestion6------------------------------------------------------------

8、--------------------Question7)Whichofthefollowingarelegalidentifiers1)2variable2)variable23)_whatavariable4)_3_5)$anothervar6)#myvarAnswertoQuestion7-------------------------------