金蝶中间件校招笔试题Word文档下载推荐.docx

金蝶中间件校招笔试题Word文档下载推荐.docx

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D.（i.equals（d））

E.（d.equals（l））

F.（i.equals（l））

G.（l.equals（42L））

3．Whathappenswhenyoutrytocompileandrunthefollowingapplication?

Chooseall

Correctoptions.

1.publicclassZ{

2.publicstaticvoidmain（String[]args）{

3.newZ（）;

4.}

5.

6.Z（）{

7.Zalias1=this;

8.Zalias2=this;

9.synchronized（alias1）{

10.try{

11.alias2.wait（）;

12.System.out.println（"

DONEWAITING"

）;

13.}

14.catch（InterruptedExceptione）{

15.System.out.println（"

INTERRUPTED"

16.}

17.catch（Exceptione）{

18.System.out.println（"

OTHEREXCEPTION"

19.}

20.finally{

21.System.out.println（"

FINALLY"

22.}

23.}

24.System.out.println（"

ALLDONE"

25.}

26.}

A．Theapplicationcompilesandprints“DONEWAITING”

B．Theapplicationcompilesbutdoesn’tprintanything

C．Theapplicationcompilesandprint“FINALLY”

D．Theapplicationcompilesandprint“ALLDONE”

E．Theapplicationcompilesandprint“INTERRUPTED”

F．Theapplicationcompilesandprint“DONEWAITING”and“FINALLY”

4．Considerthefollowingclasses:

1.classPerson{

2.publicvoidprintValue（inti,intj）{/*.....*/}

3.publicvoidprintValue（inti）{/*....*/}

5.publicclassTeacherextendsPerson{

6.publicvoidprintValue（）{/*...*/}

7.publicvoidprintValue（inti）{/*...*/}

8.publicvoidprintValue（Stringi）{/*...*/}

9.publicstaticvoidmain（Stringargs[]）{

10.Persont=newTeacher（）;

11.charch='

y'

;

12.t.printValue（ch）;

13.}

14.}

Whichofthestatementsbelowistrue?

A．Line7willnotcompile,becausevoidmethodscannotbeoverridden

B．Line12willnotcompile,becausethereisnoversionofprintValue（）thattakesacharargument

C．Thecodewillcompilebutwillthrowanexceptionatline12atruntime

D．Thestatementonline12willinvokethemethodonline8

E．Thestatementonline12willinvokethemethodonline2

F．Thestatementonline12willinvokethemethodonline3

G．Thestatementonline12willinvokethemethodonline7

5．Considerthefollowingstatement,chooseallcorrectoptions

YouaregivenaclasshierarchywithaninstanceoftheClassDog.TheclassDogisachildof

MammalandtheclassMammalisachildoftheclassVertebrate.TheclassVertebratehasamethodcalledmovewhichprintsoutthestring“move”.TheclassMammaloverridesthismethodandprintsoutthestring”walks”.TheclassDogoverridesthismethodandprintsoutthestring“walksonpaws”.

Givenaninstance（dog）oftheclassDog,howcanyouaccesstheancestormethodmoveinVertebratesoitprintsoutthestring“move”;

A．dog.super（）.super（）.move（）;

B．dog.parent（）.parent（）.move（）;

C．dog.move（）;

D．noneoftheabove

6．Whatwillhappenwhenyouattempttocompileandrunthefollowingcode.

publicclassTest{

publicstaticvoidmain（Stringargv[]）{

HHQht=newHHQ（"

myname"

ht.start（）;

}

}

classHHQextendsThread{

privateStringname="

"

HHQ（Strings）{

name=s;

publicvoidrun（）{

inner（）;

System.out.println（"

finished"

publicvoidinner（）{

while（true）{

try{

System.out.println（"

waiting"

wait（）;

}catch（InterruptedExceptionie）{

}

System.out.println（name）;

notifyAll（）;

}

A．Itwillcauseacompiletimeerror

B．Compilationandoutputof“waiting”

C．Compilationandoutputof“waiting”followedby“finished”

D．Runtimeerror,outputof“waiting”andanexceptionwillbethrown

7．Whichofthefollowingmostcloselydescribestheprocessofoverriding?

A．Aclasswiththesamenamereplacesthefunctionalityofaclassdefinedearlierinthehierarchy

B．Amethodwiththesamenamecompletelyreplacesthefunctionalityofamethodearlierinthehierarchy

C．Amethodwiththesamenamebutdifferentparametersgivesmultipleusesforthesamemethodname

D．Aclassispreventedfromaccessingmethodsinitsimmediateancestor

8．Giventhefollowingcode:

1classA{

2publicvoidprocess（）{System.out.print（"

A"

}}

3classBextendsA{

4publicvoidprocess（）throwsIOException{

5super.process（）;

6System.out.print（"

B"

7thrownewIOException（）;

8}

9publicstaticvoidmain（String[]args）{

10try{

11newB（）.process（）;

12}catch（IOExceptione）{

13System.out.println（"

Exception"

14}

15}

16}

Whatwillhappenwhenyouattempttocompileandrunit?

A．Theprogramwillrunandoutput“A”,”B”and“Exception”

B．Theprogramwillrunandoutput“A”

C．Theprogramwillrunandoutput“B”and“Exception”

D．Compilationfa