博彥科技高級java開發(fā)工程師

Selectvalididentifierof 3:Aclassdesignrequiresthataparticularmembervariablemustbeaccessiblefordirectaccessbyanysubclassesofthisclass.butotherwisenotbyclasseswhicharenotmembersofthesamepackage.Whatshouldbedonetoachievethis?A.ThevariableshouldbemarkedB.ThevariableshouldbemarkedC.ThevariableshouldbemarkedD.ThevariableshouldhavenospecialaccesspublicclassOuterClassprivatedoubled1=//insertcode}Youneedtoinsertaninnerclassdeclarationatline3.WhichtwoinnerclassdeclarationsareclassInnerOne{publicstaticdoublemethoda(){returnd1;}publicclassInnerOne{staticdoublemethoda(){returnd1;}privateclassInnerOne{doublemethoda(){returnd1;}staticclassInnerOne{protecteddoublemethoda(){returnd1;}5:Whichofthefollowingansweriscorrecttoexpressthevalue8inoctal6:WhichfragmentsarenotcorrectinJavasourceA.packagetestpackage;publicclassTest{//doB.importjava.io.*;packagetestpackage;publicclassTest{//doC.importjava.io.*; {//dosomething...}publicclassTest{//doD.importjava.io.*;importjava.awt.*;publicclassTest{//do 9:9:WhichcodefragmentswouldcorrectlyidentifythenumberofargumentspassedviacommandlinetoaJavaapplication,count=intcount=args.length-intcount=0;while(args[count]!=null)intcount=0;while(!(args[count].equals(“”)))1.1.Whatwillhappenwhenyouattempttocompileandrunthefollowingcode?3.publicclassSx=5;15.staticintx,y;17.publicstaticvoidmain(Stringargs[])System.out.println(x+y+29.publicstaticvoidmyMethod()33.33.y=x+++printsprints:prints:prints:prints:1.Whatwillbeprintedwhenyouexecutethefollowingcode?class{Yb=new{}class{{17.publicclassZextends{Yy=new{26.27.publicstaticvoidmain(String[]28.28. new30.WhathappenswhenyoutrytocompileandrunthefollowingclassStringpublicstaticvoidmain(String[]Mysterym=new}void}void}}thiscodecomplilesbutthrowsanexceptionatthiscoderunsbutnothingappearsinthestandardthiscoderunsand“constructor”inthestandardthiscoderunsandwrites”null”inthestandard則執(zhí)行以下程序段的輸出結(jié)果為（）switch{caseswitchswitch{case0:printf("**0**");break;case}case}1.Inthefollowingcode,whichistheearlieststatement,wheretheobjectoriginallyheldne,maybegarbage1.publicclassTest2.publicstaticvoidmain(Stringargs[])Employeee=newEmployee("Bob",6.18.e=e=newEmployee("Denise",36);3.OnlyA.LineA.LineB.LineB.LineC.L