代碼筆試本試題答題時間為

本試題答題時間為45Giventhefollowingclasseswhichofthefollowingwillcompilewithout//CodeinterfaceclassCFaceimplementsIFace{}classBase{}publicclassExampleextendsBasepublicstaticvoidmain(Stringargs[]){Exampleob=newExample();Baseb=newBase();Objecto1=newObject();IFaceo2=newCFace();}}//CodeSelectallrighto1=b=ob=o1=Whatistheresultwhenyoucompileandrunthefollowing//CodeclassExamplepublicstaticvoidmain(String[]args){inti=0;intj=5;outer:for(;;i++){for(;;j--)if(i>j){breakout;}}System.out.println(i+“”+}}//CodeSelectallright01-20-Whatistheresultwhenyoucompileandrunthefollowing//CodeclassApublicvoidprocess(){}}classBextendsApublicvoidprocess()throwsException{thrownew}}classExamplepublicstaticvoidmain(Stringargs[]){new}catch(Exceptione){}}}//CodeSelectallrightA,B,CompilationANullPointerExceptionisthrownatWhatistheresultwhenyoucompileandrunthefollowing//CodeclassExampleextendsThreadpublicstaticvoidmain(Stringargs[]){Examplet=newExample();System.out.println(“one.”);System.out.println(“two.”);}publicvoidrun(){System.out.print(“Thread”);}}//CodeSelectallrightCompilationAneceptionoccursatThreadone.ThreadTheoutputcannotbeWhatistheresultwhenyoucompileandrunthefollowing//CodepublicclassExample{longlength;publicExample(longl){length=l;}publicstaticvoidmain(Stringargs[])Examples1,s2,s1=newExample(21L);s2=newExample(21L);s3=s2;longm=}}//CodeWhichclasscanaccessallthevariablesinthes1==s2==m==Whatistheresultwhenyoucompileandrunthefollowing//CodepublicclassExample{privatefloatf=1.0f;intm=12;staticintn=publicstaticvoidmain(Stringargs[]){Examplet=newExample();//somecode}}//CodeWhichofthefollowingusagearelegal?SelectallrightWhatistheresultwhenyoucompileandrunthefollowing//Codebegin:classUse{publicvoidmyfunc();publicvoidanother(){}}publicclassExampleextendsUsepublicstaticvoidmain(Stringargs[]){Examplea=newExample();}publicvoidmyfunc(){System.out.println(“Myfunc”);}publicvoidamethod(){}}//CodeSelectallrightThecodewillcompileandrun,printingoutthewordsThecompilerwillcominthattheUseclassisnotdeclaredThecodewillcompilebutcominatruntimethattheUseclasshas Thecompilerwillcominthatthemethodmyfuncinthebaseclasshasnobody,nobodyatalltoloooveit.Whatclassandmethodcanbeusedtogetthevalueof//Code<context-//CodeSelecttheonerightHttpServletServletContextHttpServletRequestServletGiventhefollowingtaghandlerdefinedwith//CodepublicclassBodyextendsTagSupportpublicintdoStartTag()throwsJspException{returnEVAL_BODY_INCLUDE;}publicintdoAfterBody()throwsJspException{try{pageContext.getOut().print(“howare}catch(IOExceptione){}returnSKIP_BODY;}}//CodeWhatwillbeprintedoutbythefollowingpartofajsp SelecttheonecorrectThetaghandlerwon’tThejsppagewill ohowareThejsppagewillprinthoware Thejsppagewill Whichinterfacemustaclassimplementsothatinstanceoftheclassarenotifiedafteranyobjectisaddedtoasession?SelecttheonecorrectWhichtwostatementsabouttagfilesaretrue?Selectthetwocorrectanswers:ClassictaghandlersandtagfilesCANNOTresideinthesametagAfilenamedfoo.taglocatedin/WEB-INF/tags/bar,isrecognizedasatagfilebytheAfilenamedfoo.tagbundledinaJARfilebutNOTdefinedinaTLD,triggersacontainertranslationerror.Afilenamedfoo.tag,locatedinawebapplication’srootdirectory,isrecognizedasatagfilebythecontainer.Iffilesfoo1.tagandfoo2.tagbothresidesin/WEB-INF/tags/bar,thecontainerwillconsiderthemapartofthesametaglibrary.Giventhefollowing//Coderequested.setAttribute(“vals”,newString[]{“1”,“2”,“3”,requested.setAttribute(“index”,<%--insertcodehere--//CodeWhichthr