Computer Science Test Questions 1 and Answers Updated 2026

Computer Science Test
Questions and Answers
Updated 2026
PrintWriterB-BAnswerBWhatBisBusedBforBwritingBoutputBtoBaBfile?



scannerB-BAnswerBWhatBisBusedBwhenBgettingBinputBfromBaBfile?



scannerB-BAnswerBWhichBofBtheBfollowingBisBnotBaBprimitiveBdataBtype?

floatB

longB

ScannerB

char



/nB-BAnswerBWhichBofBtheBfollowingBisBanBexampleBofBanBescapeBsequence?

/nB

whileB

mainB

Scanner



countB==B1B-
BAnswerBWhichBofBtheBfollowingBdoesBnotBchangeBtheBvalueBofBaBvariable?

count++

countB==B1

countB+=B1

countB=B1

countB=BcountB+B1

, Math.powB-
BAnswerBWhichBofBtheBfollowingBshouldByouBuseBtoBcomputeBtheBvalueBthatBresults
BwhenBraisingBoneBvariableBtoBtheBpowerBofBanotherB(i.e,Bexponentiation)?

Math.powB

Math.random

**B

++

^B

none



okBwillBalwaysBbeBprintedB-
BAnswerBif(BfirstletterB!=B'y'B||BfirstletterB!=B'Y')BSystem.out.printlnB(B"ok"B);



WhichBofBtheBfollowingBtrue:

okBwillBalwaysBbeBprinted

okBwillBneverBbeBprinted

okBwillBbeBprintedBonlyBwhenBfirstletterBisBneitherB'y'BnorB'Y'

theBvalueBofBfirstletterBwillBbeBprintedBonlyBifBitBhasBtheBvalueB'n'

none



TestQuestion.javaB-BAnswerBSupposeByouBimplementBaBclassBwithBtheBheader

B//BpublicBclassBTestQuestion

TheBjavaBsourceBcodeBforBtheBclassBisBstoredBinBaBfileBwithBtheBname:



19B-BAnswerBHowBmanyBtimesBwillBtheBbodyBofBtheBloopBexecute?

forB(intBiB=B1;BiB<B20,Bi++)

{

BSystem.out.printlnB(BiB)