AP Computer Science Arrays Questions and Verified Answers

AP Computer Science Arrays Questions and
Verified Answers 2025-2026
WhichAstatement(s)AaboutAtheAsizeAofAaAJavaAarray,AarrayAlist,AandAstringAareAtrue?

I.ATheAsyntaxAforAdeterminingAtheAsizeAofAanAarray,AanAarrayAlist,AandAaAstringAinAJavaAisAco
nsistentAamongAtheAthree

II.ATheAstringAusesAs.size(),AwhileAtheAarrayAlistAusesAa.length()

III.ATheAarrayAusesAa.length,AwhichAisAnotAaAmethodAcallA-ACORRECTAANSWERSA-III
IdentifyAtheAcorrectAstatementAforAdefiningAanAintegerAarrayAnamedAnumarrayAofAtenAelem
ents.A-ACORRECTAANSWERSA-int[A]AnumarrayA=AnewAint[10];
CompleteAtheAfollowingAcodeAsnippetAwithAtheAcorrectAenhancedAforAloopAsoAitAiteratesAove
rAtheAarrayAwithoutAusingAanAindexAvariable.
A

String[A]AarrA=A{A"abc",A"def",A"ghi",A"jkl"A};
___________________
{
ASystem.out.print(str);

}A-ACORRECTAANSWERSA-forA(StringAstrA:Aarr)
WhatAisAtheAvalidArangeAofAindexAvaluesAforAanAarrayAofAsizeA10?A-
ACORRECTAANSWERSA-0AtoA9

WhatAisAtheAoutputAofAtheAgivenAcodeAsnippet?
A

int[A]AmynumA=AnewAint[5];
forA(intAiA=A1;AiA<A5;Ai++)
{
Amynum[i]A=AiA+A1;

ASystem.out.print(mynum[i]);

}A-ACORRECTAANSWERSA-2345
WhatAisAtheAresultAofAexecutingAthisAcodeAsnippet?
A

int[A]AmarksA=A{A90,A45,A67A};
forA(intAiA=A0;AiA<=A3;Ai++)
{
ASystem.out.println(marks[i]);

}A-ACORRECTAANSWERSA-TheAcodeAsnippetAcausesAaAboundsAerror.
WhichAoneAofAtheAfollowingAstatementsAisAcorrectAaboutAtheAgivenAcodeAsnippet?
A

int[A]AsomearrayA=AnewAint[6];
forA(intAiA=A1;AiA<A6;Ai++)
{
Asomearray[i]A=AiA+A1;

}A-ACORRECTAANSWERSA-
TheAforAloopAinitializesAallAtheAelementsAexceptAtheAfirstAelement.

, InAaApartiallyAfilledAarray,AtheAnumberAofAslotsAinAtheAarrayAthatAareAnotAcurrentlyAusedAisA-
ACORRECTAANSWERSA-

theAlengthAofAtheAarrayAminusAtheAnumberAofAelementsAcurrentlyAinAtheAarray
WhichAoneAofAtheAfollowingAstatementsAisAcorrectAforAtheAgivenAcodeAsnippet?

int[A]AnumberA=AnewAint[3];A//ALineA1
number[3]A=A5;A//ALineA2A-ACORRECTAANSWERSA-
LineA2AcausesAaAboundsAerrorAbecauseA3AisAanAinvalidAindexAnumber.
WhichAcodeAsnippetAprintsAoutAtheAelementsAinAaApartiallyAfilledAarrayAofAintegers?A-
ACORRECTAANSWERSA-forA(intAiA=A0;AiA<AcurrLength;Ai++)

{
ASystem.out.print(myArray[i]);

}
WhatAisAtheAoutputAofAtheAfollowingAcodeAsnippet?
int[A]AmyarrayA=A{A10,A20,A30,A40,A50A};
System.out.print(myarray[2]);
System.out.print(myarray[3]);A-ACORRECTAANSWERSA-3040
WhatAisAdisplayedAafterAexecutingAtheAgivenAcodeAsnippet?
A

int[A]AmymarksA=AnewAint[10];
intAtotalA=A0;
ScannerAinA=AnewAScanner(System.in);
forA(intAcntA=A1;AcntA<=A10;Acnt++)
{
ASystem.out.print("EnterAtheAmarks:A");

Amymarks[cnt]A=Ain.nextInt();

AtotalA=AtotalA+Amymarks[cnt];

}
System.out.println(total);A-ACORRECTAANSWERSA-
TheAcodeAsnippetAcausesAaAboundsAerror.
SupposeAyouAwishAtoAwriteAaAmethodAthatAreturnsAtheAsumAofAtheAelementsAinAtheApartially
AfilledAarrayAmyArray.AWhichAisAaAreasonableAmethodAheader?A-ACORRECTAANSWERSA-

publicAstaticAintAsum(int[A]Avalues,AintAcurrSize)
WhichAoneAofAtheAfollowingAstatementsAisAaAvalidAinitializationAofAanAarrayAnamedAsomearr
ayAofAtenAelements?A-ACORRECTAANSWERSA-
int[A]AsomearrayA=A{A0,A1,A2,A3,A4,A5,A6,A7,A8,A9A};
WhichAoneAofAtheAfollowingAoptionsAisAaAvalidAlineAofAcodeAforAdisplayingAtheAtwenty-
eighthAelementAofAsomearray?A-ACORRECTAANSWERSA-
System.out.println(somearray[27]);
WhenAanAarrayAmyArrayAisAonlyApartiallyAfilled,AhowAcanAtheAprogrammerAkeepAtrackAofAth
eAcurrentAnumberAofAelements?A-ACORRECTAANSWERSA-
maintainAaAcompanionAvariableAthatAstoresAtheAcurrentAnumberAofAelements
WhenAanAarrayAreadingAandAstoringAinputArunsAoutAofAspaceA-ACORRECTAANSWERSA-
d.AtheAarrayAmustAbeA"grown"AusingAtheAnewAcommandAandAtheAcopyOfAmethod.
WhichAstatementsAareAtrueAaboutAtheAbufferAoverrunAattackAlaunchedAoverAtheAInternetAinA
1988?
A