個(gè)的筆試題天麗科技

1.1.Whatwillhappenwhenyouattempttocompileandrunthefollowingcode?3.i=9.publicvoidamethod()}}27.publicclassDerivedextendsBi=-35.publicstaticvoidmain(Stringargv[])Baseb=new}publicvoid}A.Derived.amethod()A.Derived.amethod()-1B.Derived.amethod()99piletimeerror2:JDBCB.Java源代碼傳送到任何關(guān)系數(shù)據(jù)庫中D.SQL1.Strings=”ExampleString”;Whichoperationisnot A.intA.inti=s.length();C.StringD.StringD.StringpublicpublicclasspublicObjectObjecto=newFloat(3.14F);//line3Object[]oa=newObject[1];//line4oa[0]=o;//line5o=null;//linereturnoa[0];//line}18.WhenistheFloatobject,createdinline3,eligibleforgarbagejustjustafterlinejustafterlinejustafterline7(thatis,asthemethodneverinthis5:WhichfragmentsarenotcorrectinJavasourcepackagetestpackage;publicclassTest{//doimportjava.io.*;packagetestpackage;publicclassTest{//doC.importjava.io.*;{//dosomething...}publicclassTest{//doD.importjava.io.*;importjava.awt.*;publicclassTest{//doA.inti=100while(1){i=i%100+1;if(i>100)break;B.forC.intC.intk=1000;do{++k;D.ints=36;while(s);--7:Whichisthemain()methodreturnofa8:Usetheoperator“>>”and“>>>”.WhichstatementisA.10100000000000000000000000000000>>4give000010100000000000000000B.10100000000000000000000000000000>>4give111110100000000000000000C.10100000000000000000000000000000>>>4give000000000000000000000000D.10100000000000000000000000000000>>>4give1111101000000000000000001.1.Whatwillhappenwhenyouattempttocompileandrunthefollowingcode?3.(Assumethatthecodeiscompiledandrunwithassertionsenabled.)5.publicclassAssertTest{7.publicvoidmethodA(inti){9.asserti>=0:methodB();15.publicvoidmethodB(){17.17.System.out.println("Thevaluemustnotbenegative");21.publicstaticvoidmain(Stringargs[]){23.AssertTesttest=newAssertTest();ititwillprint-itwillresultinAssertionErrorshowingthemessage-“thevaluemustnotbethecodewillnotNoneof1.ThefollowingcodeisentirecontentsofafilecalledExample.java,causespreciselyeeerrorduringclassSubClassextends}classStringpublicpublicBaseClass(StringpublicclasspublicvoidSubClasss=new BaseClassb=new}}Whichlinewouldbecausethe11:Aclassdesignrequiresthatamembervariableshouldbeaccessibleonlybysamepackage,whichmodiferwordshouldbeused?C.nomodiferA.-1.1.Givethefollowingpublicvoidmethod(Stringa=newob=newString(“gameover”);}Intheabsenceofcompileroptimization,whichistheearliestpointtheobjectareferedisdefini yelibiletobegarbagecollecti