2025年Java程序员认证真题集锦

yModule1-JAVA基础

一、选择题：

Question1

Given:

35.String#name=HJaneDoe";

36.int$age=24;

37.Double_height=123.5;

38.double-temp=37.5;

Whichtwoaretrue?(Choosetwo.)

A.Line35willnotcompile.

B.Line36willnotcompile.

C.Line37willnotcompile.

D.Line38willnotcompile.

Answer:AD标识符以字母，下划线，或者$开始

Question2

Given:

11.publicclassTest{

12.publicstaticvoidmain(String[]args){

13.intx=5;

14.booleanbl=true;

15.booleanb2=false;

16.

17.if((x==4)&&!b2)

18.Systern.out.print("1");

19.System.out.print("2");

20.if((b2=true)&&bl)

21.System.out.print("3");

22.)

23.)

Whatistheresult?

A.2

B.3

C.12

D.23

E.123

F.Compilationfails.

G.Anexceptionalisthrownatruntime.

Answer:D注意20行，=为赋值，不要受骗

Question3

Given:

42.publicclassClassA{

43.publicintgetValue(){

44.intvalue=0;

45.booleansetting=true;

46.String；

47.if(value||(setting&&title=="Hello")){return1;}

48.if(value==1&title.equals(nHellon)){return2;}

49.)

50.}

And:

70.ClassAa=newClassA();

71.a.getValue();

Whatistheresult?

A.1

B.2

C.Compilationfails.

D.Thecoderunswithnooutput.

E.Anexceptionisthrownatruntime.

Answer:C编译不通过，47行value为int类型不是boolean

Question4

Given:

11.publicvoidtestlfAO{

12.if(testIfB("True")){

13.System.out.printin("True");

14.}else{

15.System.out.printin("Nottrue");

16.)

17.}

18.publicBooleantestlfB(Stringstr){

19.returnBoolean.valueOf(str);

20.)

WhatistheresultwhenmethodtestlfAisinvoked?

A.True

B.Nottrue

C.Anexceptionisthrownatruntime.

D.Compilationfailsbecauseofanerroratline12.

E.Compilationfailsbecauseofanerroratline19.

Answer:A19行，假如str为true贝返回ture,否贝lj返回false

Question5

Given:

11.publicstaticvoidmain(String[]args){

12.Integeri=newInteger(1)+newInteger(2);

13.switch(i){

14.case3:System.out.printin("three");break;

15.default:System.out.println("other");break;

16.)

17.)

Whatistheresult?

A.three

B.other

C.Anexceptionisthrownatruntime.

D.Compilationfailsbecauseofanerroronline12.

E.Compilationfailsbecauseofanerroronline13.

F.Compilationfailsbecauseofanerroronline15.

Answer:A就是两个工nteger类型相加

Question6

Given:

11.publicstaticvoidmain(String[]args){

12.Stringstr="null";

13.if(str==null){

14.System.out.printin("null");

15.}else(str.length()=0){

16.System.out.printin("zero");

17.}else{

18.System.out.printin{*'some");

19.)

20.)

'Whatistheresult?

A.null

B.zero

C.some

D.Compilationfails.

E.Anexceptionisthrownatruntime.

Answer:D这题真恶心15行少个if

Question7

Given:

10.intx=0;

ll.inty=10;

12.do{

13.y--;

14.++x;

15.}while(x<5);

16.System.out.print(x+","+y);

Whatistheresult?

A.5,6

B.5,5

C.6Z5

D.6,6

Answer:B(91,82,73,64,55)没啥争议

Question8

Given:

25.intx=12;

26.while(x<10){

27.x—;

28.}

29.System.out.print(x);

Whatistheresult?

A.0

B.10

C.12

D.Line29willneverbereached.

Answer:C12>10,因此直接跳出循环，输出x=12

Question9

Given:

35.intx=10;

36.do{

37.x--;

38.}while(x<10);

Howmanytimeswillline37beexecuted?

A.tentimes

B.zerotimes

C.onetometimes

D.morethantentimes

Answer:D死循环

Question10

Given:

11.publicstaticvoidmain(String[]args){

12.for(inti=0;i<=10;i++){

13.if(i>6)break;

14.)

15.System.out.printin{i);

16.)

Whatistheresult?

A.6

B.7

C.10

D.11

E.Compilationfails.

F.Anexceptionisthrownatruntime.

Answer:E15行i超过了作用域

Question11

Given:

55.int[]x={1,2,3,4,5};

56.inty[]=x;

57.System.out.println(y[2]);

Whichistrue?

A.Line57willprintthevalue2.

B.Line57willprintthevalue3.

C.Compilationwillfailbecauseofanerrorinline55.

D.Compilationwillfailbecauseofanerrorinline56.

Answer:B没争议，考察数组下标是从0开始

Question12

Whichtwocodefragments(片段)correctly(对的)createandinitialize

astaticarrayofintelements?(Choosetwo.)

A.staticfinalint[]a={100,200);

B.staticfinalint[]a;

static{a=newint[2];a[0]=100;a[1]=200;}

C.staticfinalint[]a=newint[2]{100,200}；

D.staticfinalint[]a;

staticvoidinit(){a=newint[3];a[0]=100;a[l]=200;}

Answer:ABc不能指定长度，d不能在init措施中赋值,要么在static代码块中

Question13

Given:

11.publicstaticvoidmain(String[]args){

12.Objectobj=newint[]{1,2,3);

13.int[]someArray={int[])obj;

14.for(inti:someArray)System.out.print(i+"*')

15.)

'Whatistheresult?

A.123

R.Compi1ationfailscfanArrorin1i12.

C.Compilationfailsbecauseofanerrorinline13.

D.Compilationfailsbecauseofanerrorinline14.

E.AClassCastExceptionisthrownatruntime.

Answer:A没争议，foeach循环遍历数组

Question14

Given:

11.String[]elements={"for","tea",ntoo");

12.Stringfirst=(elements.length>0)?elements[0]:null;

Whatistheresult?

A.Compilationfails.

B.Anexceptionisthrownatruntime.

C.Thevariablefirstissettonull.

D.Thevariablefirstissettoelements[0].

Answer:D

Question15

Given:

10.publicclassBar{

11.staticvoidfoo(int...x){

12.//insertcodehere

13.)

14.)

Whichtwocodefragments,insertedindependently(独立的)atline12,will

allowtheclasstocompile?(Choosetwo.)

A.foreach(x)System.out.printin(z);

B.for(intz:x)System.out.println(z);

C.while(x.hasNext())System.out.printin(x.next());

D.for(inti=0;i<x.length;i++)System.out.printin(x[i]);

Answer:BDx相称于一种数组，a明显错没有foreach,c中x没有hadNext措施

Question16

Aprogrammer(程序员)needstocreatealoggingmethodthatcanaccept

(接受)anarbitrary(随意任意)numberofarguments.Forexample,itmay

becalledinthese

logit("logmessage1");

logit("logmessage2","logmessage3n);

logit("logmessaged","logmessage5n,"logmessage6");

Whichdeclaration(阐明)Gaticfico(符合)thiorequirement(需求)?

A.publicvoidlogit(String*msgs)

B.publicvoidlogit(String[]msgs)

C.publicvoidlogit(String...msgs)

D.publicvoidlogit(Stringmsgl,Stringmsg2zStringmsg3)

Answer:C可变长参数

Question17

1publicclassA{

2publicStringdoit(intx,inty)

3return"a";

4}

5

6publicSLxlngdolt(inL...vdls)

7return"b";

0.1

9.}

Given:

25.Aa=newA();

26.System.out.printin{a.doit(4,5));

Whatistheresult?

A.Line26prints"a"toSystem.out.

B.Line26prints"b"toSystem.out.

C.Anexceptionisthrownatline26atruntime.

D.CompilationofclassAwillfailduetoanerrorinline6.

Answer:A确定参数和可变长参数同步存在的时候，优先考虑确定参数的

Question18

Givena:

1.packageanimals.mammals;

2.

3.publicclassGrizzlyBearextendsBear{

4.voidhunt(){

5.Salmons=findSalmon();

6.s.consume();

7-}

8.}

andanotherfile,Salmon.java:

1.packageanimals.fish;

2.

3.publicclassSalmonextendsFish{

4.voidconsume(){/*dostuff*/)

5.)

Assume(假定)bothclassesaredefinedinthecorrectdirectoriesfortheft

packages,andthattheMammalclasscorrectlydefinesthefindSalmon()

method.Whichtwochangesallowthiscodetocompilecorrectly?(Choose

two.)

A.addpublictothestartofline4inSalmon.java

B.addpublictothestartofline4inGrizzlyBear.java

C.addimportanimals.mammals.*;atline2inSalmon.java

D.addimportanimals.fish.*;atline2inGrizzlyBear.java

E.addimportanimals.fish.Salmon.*;atline2inGrizzlyBear.java

F.addimportanimals.mammals.GrizzlyBear.*;atline2inSalmon.java

Answer:AD调用不一样包下的类，要先导入，措施权限要设置成public

Question19

Given:

10.packagecom.sun.scjp;

11.publicclassGeodetics{

12.publicstaticfinaldoubleDIAMETER=12756.32;//kilometers

13.)

Whichtwocorrectlyaccess(访问)theDIAMETERmemberoftheGeodeticsclass?

(Choosetwo.)

A.importcom.sun.scjp.Geodetics;

publicclassTerraCarta{

publicdoublehalfway()

{returnGeodetics.DIAMETER/2.0;}}

B.importstaticcom.sun.scjp.Geodetics;

publicclassTerraCarta(

publicdoublehalfway(){returnDIAMETER/2.0;}}

C.importstaticcom.sun.scjp.Geodetics.*;

publicclassTerraCarta{

publicdoublehalfway(){returnDIAMETER/2.0;}}

D.packagecom.sun.scjp;

publicclassTerraCarta{

publicdoublehalfway(){returnDIAMETER/2.0;}}

Answer:ACb中不能静态导入类，c中静态导入类属性，对的，d访问错误很明显

Question20

Givenclassesdefinedintwodifferentfiles:

1.packageutil;

2.publicclassBitutils{

3.privatestaticvoidprocess(byte[]b){}

4.}

1.packageapp;

2.publicclassSomeApp{

3.publicstaticvoidmain(String[]args){

4.byte[]bytes=newbyte[256];

5.//insertcodehere

6.}

7.}

Whatisrequired(必需的)atline5inclassSomeApptousetheprocess

method

ofBitUtils?

A.process(bytes);

B.BitUcess(bytes);

C.app.BitUcess(bytes);

D.util.BitUcess(bytes);

E.importutil.BitUtils.*;process(bytes);

F.SomeAppcannotusetheprocessmethodinBitUtils.

Answer:F私有的，不能被访问

Question21

GivenaclassRepetition(反复):

1.packageutils;

2.

3.publicclassRepetition{

4.publicstaticStringtwice(Strings){returns+s;}

5.)

andgivenanotherclassDemo:

1.//insertcodehere

2.

3.publicclassDemo{

4.publicstaticvoidmain(String[]args){

5.System.out.printin(twice("pizza"));

6.)

7.}

Whichcodeshouldbeinsertedatline1ofDemo.javatocompileandrun

Demotoprint''pizzapizza''?

A.importutils.*;

B.staticimportutils.*;

C.importutils.Repetition.*;

D.Staticimportutils.Repetition.*;

E.importutils.Repetition.twice();

F.importstaticutils.Repetition.twice;

G.staticimportutils.Repetition.twice;

Answer:F静态导入

Question22

Given:

1.packagetest;

2.

3.classTarget(目的){

4.publicStringname="hello";

5.}

Whatcandirectly(直接的)accessandchangethevalueofthevariable

(变量)name?

A.anyclass

B.onlytheTargetclass

C.anyclassinthetestpackage

D.anyclassthatextendsTarget

Answer:Cdefault类型的类本包访问权限

Question23

Given:

11.rbo=newReallyBigObject();

12.//morecode

13.rbo=null;

14./*insertcodehere*/

Whichstatement(语句)shouldbeplacedatline14tosuggest(促成)that

thevirtualmachine(虚拟机)expend(消耗)effort(努力)towardrecycling

(回收)thememoryusedbytheobjectrbo?

A.System.gc();

B.Runtime.gc();

C.System.freeMemory();

D.Runtime.getRuntime().growHeap();

E.Runtime.getRuntime().freeMemory();

Answer:A题很简朴。英语单词很烦

Question24

Given:

11.classSnoochy{

12.Boochybooch;

13.publicSnoochy(){booch=newBoochy(this);}

14.)

15.

16.classBoochy{

17.Snoochysnooch;

18.publicBoochy(Snoochys){snooch=s;}

19.)

Andthestatements:

21.publicstaticvoidmain(String[]args){

22.Snoochysnoog=newSnoochy();

23.snoog=null;

24.//morecodehere

25.)

Whichstatementistrueabouttheobjectsreferenced(弓|用)bysnoog,snooch,

andboochimmediately(即亥!!)afterline23executes?

A.Noneoftheseobjectsareeligibleforgarbagecollection(垃圾搜集).

B.Onlytheobjectreferencedbyboochiseligibleforgarbage

collection.

C.Onlytheobjectreferencedbysnoogiseligibleforgarbage

collection.

D.Onlytheobjectreferencedbysnoochiseligibleforgarbage

collection.

E.Theobjectsreferencedbysnoochandboochareeligible(符合)for

garbagecollection.

Answer:Esnoog-x—snooch和booch,因此s和b应当被回收掉

Question25

Given:

1.publicclassGC{

2.privateObjecto;

3.privatevoiddoSomethingElse(Objectobj){o=obj;}

4.publicvoiddoSomething(){

5.Objecto=newObject();

6.doSomethingElse(o);

7.o=newObject();

8.doSomethingElse(null);

9.o=nul1;

10.)

11.)

WhenthedoSomethingmethodiscalled,afterwhichlinedoestheObject

createdinline5becomeavailableforgarbagecollection?

A.Line5

B.Line6

C.Line7

D.Line8

E.Line9

F.Line10

Answer:D第二个new不会new新对象，而还是此前的，只是第8行的时候，o才无效!

Question26

Given:

11.publicvoidgenNumbers(){

12.ArrayListnumbers=newArrayList();

13.for(inti=0;i<10;i++){

14.intvalue=i*((int)Math.random());

15.IntegerintObj=newInteger(value);

16.numbers.add(intObj);

17.}

18.System.out.printin{numbers);

19.)

Whichlineofcodemarks(标志)theearliestpointthatanobjectreferenced

byintObjbecomesacandidate(替补)forgarbagecollection?

A.Line16

B.Line17

C.Line10

D.Line19

E.TheobjectisNOTacandidateforgarbagecollection.

Answer:D措施结束后变量失效，表达可以被回收了

Question27

Whichtwoaretrue?(Choosetwo.)

A.AfinalizermayNOTbeinvokedexplicitly(直接).

B.ThefinalizemethoddeclaredinclassObjecttakesnoaction.

C.super.finalize()iscalledimplicitly(byanyoverridingfinalize

method.

D.Thefinalizemethodforagivenobjectwillbecallednomorethan

oncebythegarbagecollector.

E.Theorderinwhichfinalizewillbecalledontwoobjectsisbased

ontheorderinwhichthetwoobjectsbecamefinalizable.

Answer:BD稀里糊涂

Question28

Given:

15.publicclassYippee{

16.publicstaticvoidmain(String[]args){

17.for(intx=1;x<args.length;x++){

18.System,out.print(args[x]+"*');

19.)

20.}

21.}

andtwoseparatecommandlineinvocations(两个犯立的命令行执行):

javaYippee

javaYippee1234

Whatistheresult?

A.Nooutputisproduced(生产).

123

B.Nooutputisproduced.

234

C.Nooutputisproduced.

1234

D.Anexceptionisthrownatruntime.

CopyrightTarenaCorporation,.Allrightsreserved

123

E.Anexceptionisthrownatruntime.

234

F.Anexceptionisthrownatrijntime.

1234

Answer:B第一种没有参数不输出，第二个从数组下标为1的地方输出

Question29

Givenacorrectlycompiledclasswhosesourcecodeis:

1.packagecom.sun.sjcp;

2.publicclassCommander{

3.publicstaticvoidmain(String[]args){

4.//morecodehere

5.)

6.}

Assumethattheclasslocated(位于)in/foo/com/sun/sjcp/,thecurrent

directoryis/foo/,andthattheclasspathcontains''.''(current

directory).WhichcommandlinecorrectlyrunsCommander?

A.javaCommander

B.javacom.sim.sjcp.Commander

C.javacom/sun/sjcp/Commander

D.java-cpcom.sun.sjcpCommander

E.java-cpcom/sun/sjcpCommander

Answer:B

Question30

Given:

11.publicclassCommander{

12.publicstaticvoidmain(String[]args){

13.StringmyProp=/*insertcodehere*/

14.System.out.printin(myProp);

15.)

16.)

andthecommandline:

java-Dprop.custom=gobstopperCommander

Whichtwo,placedonline13,willproducetheoutputgobstopper?

(Choosetwo.)

A.System.load("prop.custom");

B.System.getenv("prop.custom");

C.Sperty("prop.custom");

D.System.getProperty("prop.custom");

E.System.getProperties().getProperty("prop.custom");

Answer:DE没接触过，硬背吧，从命令行获得属性

Question31

Aclassgames.cards.Pokeriscorrectlydefinedinthejar.

AuserwantstoexecutethemainmethodofPokeronaUNIXsystem

usingthecommand:javagames.cards.Poker

Whatallowstheusertodothis?

A.putPoker.jarindirectory/stuff/java,andsettheCLASSPATHto

include/stuff/java

B.putPoker.jarindirectory/stuff/java,andsettheCLASSPATHto

include/stuff/java/*.jar

C.PutPoker.jarindirectory/stuff/java,andsettheCLASSPATHto

include/stuff/java/Poker.jar

D.putPoker.jarindirectory/stuff/java/games/cards,andsetthe

CLASSPATHtoinclude/stuff/java

E.putPoker.jarindirectory/stuff/java/games/cards,andsetthe

CLASSPATHtoinclude/stuffijava/*.jar

F.putPoker.jarindirectory/stuff/java/games/cards,andsetthe

CLASSPATHtoinclude/stuff/java/Poker.jar

Answer:C没接触过，意思就是将jar包放入classpath,可以直接被执行，不过包的目

录层次还是要体现出来的，死记硬背吧

Question32

JarAJarBJarC

0META-INF

已can

LJcomL口com

L-eiioo

L

L&bartoo

LObar

-gDog.ciass

-gDogclass

-同Carclass

匚口btatz

Bookclass

WatzL同Bookclass

-回Bookclass

L同Carclass一□bar

-回Sun.dass

L?MatzL国Carciass

口

L回Sun出$$Lblatz

L国Sinciass

JarE

JarD

已META-INF

国Dogclass同Bookciass

-同Dogclass

gSunclass同Cardass

Book.ctaw

-gearclaw

国Sundays

Giventhefully-qualified（完全合格）classnames:

com.foo.bar.Dog

com.foo.bar.blatz.Book

com.bar.Car

com.bar.blatz.Sun

Whichgraph（图）represents（表达）thecorrectdirectorystructure（构

造）foraJARwhichthoseclassescanbeusedbythecompilerandJYM?

A.JarA

B.JarB

C.JarC

D.JarD

E.JarE

Answer:A无争议就是A

Question33

AdeveloperiscreatingaclassBookthatneedstoaccessclassPaper.

ThePaperclassisdeployedinaJARnamedmyLib.jar.Whichthree,

takenindependently（独立的）,willallowthedevelopertousethePaper

class

whilecompilingtheBookclass?

（Choosethree.）

A.TheJARlocatedat$JAVA_HOME/jre/classes/myLib.jar.

B.TheJARlocatedat$JAVA_HOME/jre/lib/ext/myLib.jar.

C.TheJARlocatedat/foo/myLib.jarandaclasspath

Environmentvariableissetthatincludes/foo/myLib.jar/Paper.class.

D.TheJARlocatedat/foo/myLib.jarandaclasspath

environment（环境）variableissetthatincludes/foo/myLib.jar.

E.TheJARlocatedat/foo/myLib.jarandtheBookclassis

compiledusingjavac-cp/£oo/myLib.jar/PaperBook.java.

F.TheJARlocatedat/foo/myLib.jarandtheBookclassis

compiledusingjavac-d/foo/myLib.jarBook.java.

G.TheJARlocatedat/foo/myLib.jarandtheBookclassis

compiledusingjavac-classpath/foo/myLib.jarBook.java.

Answer:BDG

Question34

Given:

1.packagepany.application;

2.

3.publicclassMainClass{

4.publicstaticvoidmain(String[]args){}

5.}

AndMainClassexistsinthe/apps/com/company/applicationdirectory.

AssumetheCLASSPATHenvironmentvariableissetto(current

directory).Whichtwojavacommandsentered(输入)atthecommandline

willrunMainClass?

(Choosetwo.)

A.javaMainClassifrunfromthe/appsdirectory

B.javapany.application.MainClassifrunfromthe/apps

directory

C.java-classpath/appspany.application.MainClassifrun

fromanydirectory

D.java-classpath.MainClassifrunfromthe

/apps/com/company/applicationdirectory

E.java-classpath/apps/com/company/application:.MainClassIfrun

fromthe/appsdirectory

F.javacom.con^>any.application.MainClassifrunfromthe

/apps/com/company/applicationdirectory

Answer:BC无争议

Question35

AUNIXusernamedBobwantstoreplace(替代)hischessprogramwitha

newone,butheisnotsurewheretheoldoneisinstalled.Bobis

currentlyabletorunaJavachessprogramstartingfromhishome

directory/home/bobusingthecommand:

java-classpath/test:/home/bob/downloads/*.jargames.Chess

Bob'sCLASSPATHisset(atlogintime)to:

/usr/lib:/home/bob/classes:/opt/java/lib:/opt/java/lib/*.jar

WhatisapossiblelocationfortheChess.classfile?

A./test/Chess.class

B./home/bob/Chess.class

C./test/games/Chess.class

D./usr/lib/games/Chess.class

E./home/bob/games/Chess.class

F.insidejar(withacorrectmanifest)

G.insidejar(withacorrect

manifest)

Answer:C考察执行时的包层次，尚有就是执行jar中类的时候，要指明jar包名，不能用

*.jar

Question36

Given;

11.publicclassCounter{

12.publicstaticvoidmain(String[]args){

13.intnumArgs=/*insertcodehere*/;

14.)

15.)

andthecommandline:

javaCounteronefred42

Whichcode,insertedatline13,captures(截获)thenumberofarguments

passedintotheprogram?

A.args.count

B.args.length

C.args.count()

D.args.length()

E.args.getLength()

Answer:B截获的是参数的长度，数组用args.length,没有length()

Question37

Given:

12.publicclassYippee2{

13.

14.staticpublicvoidmain(String[]yahoo){可以颠倒

15.for(intx=1;x<yahoo.length;x++){

16.System.out.print(yahoo[x]+"");

17.)

18.}

19.)

andthecommandlineinvocation:

javaYippee2abc

Whatistheresult?

A.ab

B.bc

C.abc

D.Compilationfails.

E.Anexceptionisthrownatruntime.

Answer:B没争议，之前有过类似题

Question38

1.publicclassTest{

2.intx=12;

3.publicvoidmethod(intx){

4.x+=x;

5.System.out.printin(x);

6.)

7.}

Given:

34.Testt=newTest();

35.t.method(5);

Whatistheoutputfromline5oftheTestclass?

A.5

B.10

C.12

D.17

E.24

Answer:B没指定七his,用的都是形参中的，5+5=10,因此选b

Question39

GiventhecommandlinejavaPass2and:

15.publicclassPass2{

16.publicvoidmain(String[]args){

17.intx=6;

18.Pass2p=newPass2();

19.p.doStuff(x);

20.System.out.print("mainx="+x);

21.}

22.

23.voiddoStuff(intx){

24.System.out.print("doStuffx="+x++);

25.)

26.)

Whatistheresult?

A.Compilationfails.

B.Anexceptionisthrownatruntime.

C.doStuffx=6mainx=6

D.doStuffx=6mainx=7

E.doStuffx=7mainx=6

F.doStuffx=7mainx=7

Answer:B垃圾题，草他大爷，主函数没有static关键字

Question40

12.Given:

13.publicclassPass{

14.publicstaticvoidmain(String[]args){

15.intx=5;

16.Passp=newPass();

17.p.doStuff(x);

18.System.out.print("mainx="+x);

19.)

20.

21.voiddoStuff(intx){

22.System.out.print("doStuffx="+x++);

23.)

24.)

Whatistheresult?

A.Compilationfails.

B.Anexceptionisthrownatruntime.

C.doStuffx=6mainx=6

D.doStuffx=5mainx=5

E.doStuffx=5mainx=6

F.doStuffx=6mainx=5

Answer:D他大爷的，和上题同样的，就是加上了个static,还5改了个x的初始值,

上题为6,此题为5,藐视！

Question41

22.publicvoidgo(){

23.Stringo="

24.z:

25.for(intx=0;x<3;x++){

26.for(inty=0;y<2;y++){

27.if(x==1)break;

28.if(x==2&&y==l)breakz;

29.o=o+x+y;

30.}

31.)

32.System.out.printin(o);

33.}

Whatistheresultwhenthego()methodisinvoked?

A.00

B.0001

C.000120

D.0001

E.Com