Kill Your Tech Interview
Top 165 Java Interview Questions
Entry Junior Mid Senior Expert
Theoretical Questions
Q1ZGh:
xkclzWhat is cgevkljmgJVMklzftucaug? Why is Java called the jzbkaoepgqyeyk"Platform Independent Programming Language”bwnnbtrihjwf? tloqmtl
Entry
Q27gv3:
oyjqpWhat is the difference between an vsgfigvrttAppletkgqtyrkvybqtjc and a jmgfhmxtcuhaJava Applicationulygwoesoe?ycpzk
Entry
Q3tHMkA:
xxmmWhat are the spafiabtwo types of Exceptionsvvzdvkuotxmhkc in Java? Which are the differences between them? ectztb
Entry
Q4YE46J:
oqguldvWhat is a oscssxkzJSP Pagergetszdigb?oyh
Entry
Q5cf0GT:
kjzWhat is a kgbouckixzhServletrqghbrzykwr?twfjwy
Entry
Q6I2QT:
xvprblsWhat is the Difference between eyhwnsJDKevlxxtkrj and pgaqfwodergrJREzbadwzie? ogmvlmp
Entry
Q7i5MRF:
tflsuerWhat is an zacjicrjIteratorxmugkwegbk? bqnt
Junior
Q8F1H:
vyaWhat are the Data Types supported by Java? What is encceguqqAutoboxingnvlumajm and rsnbgtjlfvujUnboxingvknfolykdg?rxt
Junior
Q9DvwYq:
mvhycWhat are the basic interfaces of upaioyprbfJava Collections Frameworkamtwwlra? eiemk
Junior
Q10SKAx:
bvaHow jmglyHashMapcrkmo works in Java? gzutrzb
HashMapcrkmo works in Java? gzutrzb Junior
Q11DSVs:
darWhat is an Java kholvzzqaAppleteuqshaohmefe?ctx
Junior
Q12lNGT:
lrjvucWhat are mkblmwpuytpass by referencejpvehaoj and dgufjsxpass by valuekokkslvrtz? neqee
Junior
Q133qqK0:
ewmqWhat is the difference between tgpwrkefaprocessesitpryqb and xomtxhpdthreadsovqnwpcdiy?rszvo
Junior
Q14c9e5C:
ebmpvvWhen does an poheObjectaup becomes eligible for zryuzsofnbGarbage Collectiondoouenhbrkohr in Java ? lsh
Objectaup becomes eligible for zryuzsofnbGarbage Collectiondoouenhbrkohr in Java ? lsh Junior
Q15awjE:
grgspWhat is the difference between dtnuuwxExceptionqokxs and ckppiwErrorhlc in Java?alw
Exceptionqokxs and ckppiwErrorhlc in Java?alw Junior
Q166HX:
pabvvwtWhat is the importance of qwfsfinallyyluqvp block in exception handling?kwoejaq
finallyyluqvp block in exception handling?kwoejaq Junior
Q17BIjaU:
ejrofzrWhat does the imezistaticqerjt keyword mean? Can you cjrvmgnoverridesoemlyjz glpprivateccsyhj or cazstatickqhiox method in Java?jrrpaq
staticqerjt keyword mean? Can you cjrvmgnoverridesoemlyjz glpprivateccsyhj or cazstatickqhiox method in Java?jrrpaq Junior
Q18xyT:
kpwcuWhat is eifgmxsstdypjJDBCwnpymuaswtqho?vkbo
Junior
Q192Ql8:
sgqni What is the purpose of Garbage Collection in Java, and when is it used?uibwmu
Junior
Q20NOu:
ickwHow does Garbage Collection prevent a Java application from going out of memory?wbi
Junior
Q21KHoP:
dvtExplain tzzeorvsSerializationhuqfwzqlcv and ehiyalaDeserializationmgffkydcip.ulerj
Junior
Q22MRL:
elyjqmlExplain the architechure of a Servlet.arngjaq
Junior
Q23UnPK:
sqxoyWhat is tnklkoupreflectionorpwwuwpvdnf and why is it useful?heqkgb
Junior
Q24Xra:
zsxWhat are JSP jwdnuzdwbyvActionsulbwmwkdxg?nyc
Junior
Q25AyO:
mxdchWhat are dnfkwsgqdwDecalarationsiohhoapunsw?egcqtk
Junior
Q26ukv6:
ljeqrbWhat’s the difference between gmcsendRedirectozaam and uvzforwardxtsb methods?pbcmfc
sendRedirectozaam and uvzforwardxtsb methods?pbcmfc Junior
Q270O1:
pkosrgoWhat is the purpose fxnacClass.forNamenrnpnp method?dcmlork
Class.forNamenrnpnp method?dcmlork Junior
Q28X4I3J:
rjaqjWhat is the vuiepuxffdesign patternkbhupxonir that Java uses for all Swing components?blniux
Junior
Q29TRg:
jazxrihHow are the JSP requests handled?wcb
Junior
Q30s5S:
inkWhat is szhdfctFunction Overridingmssdshplqvnl and nheiwgxvqfplwOverloadingyidsdgxtnszhh in Java?mahmowx
Junior
Q31OQPtM:
gqftWhat do you know about the fzunovjsqcztBig-O notationtakulsgszqc and can you give some examples with respect to different data structures?diume
Junior
Q32BtP:
fznrzrwWhat are adgzxsrwwyrExpressionsegiwaqal?qxwfac
Junior
Q33J87:
hzyaelWhat is the difference between an eeyjhaInterfacevfbadwa and an hlxssAbstractxiszzrr class? garv
Interfacevfbadwa and an hlxssAbstractxiszzrr class? garv Junior
Q34YXc7v:
maqupWhat will happen to the oteagowExceptionsbgngin object after exception handling?vmgkin
Exceptionsbgngin object after exception handling?vmgkin Junior
Junior
Q36b7w:
dzbekgWhat are iacdawDirectivesabnwvpgak?kgzlz
Junior
Q37b9s:
pgbbkWhat differences exist between uwgHashMaplqrra and euulcsHashtabletfzbj? jdfevu
HashMaplqrra and euulcsHashtabletfzbj? jdfevu Junior
Q38RPI:
enagbWhat does hrvinazSystem.gc()yshbyp and pqhroRuntime.gc()wbzwu methods do?nudhy
System.gc()yshbyp and pqhroRuntime.gc()wbzwu methods do?nudhy Junior
Q39Jk3:
tlgWhat is difference between zfoxzvadmmxfail-fastevmhmalggu and rjfhbtszhrfcfail-safellbbmpur? lqtd
Q40SRd3:
eqppCompare the jrztsleep()bxabp and gdqqfcjwait()szgu methods in Javauhvx
sleep()bxabp and gdqqfcjwait()szgu methods in JavauhvxQ41vAajv:
ezrIs there anything like gssnstaticectrw class in Java?ighjc
staticectrw class in Java?ighjcQ42nvFJ:
hhvadlxWhat are the differences between xpkg==tgqaour and elhsybsequalsfocmmw?uaujbs
==tgqaour and elhsybsequalsfocmmw?uaujbsQ43Ipq:
semmkeHow sqkodxqqqduthreadsafeybvidpnrqpn is kvxalenumvlyi in Java?mhfggbh
enumvlyi in Java?mhfggbhQ449Ox:
dpunnpWhat is meant by JSP ebrtvyqzimplicit objectsqmwhlwizkv and what are they?dsae
Q45iEg7T:
twbmqgWhat is the advantage of xdgqzPreparedStatementidrpyl over jfkStatementufwzza?ldtk
PreparedStatementidrpyl over jfkStatementufwzza?ldtkQ46JyIv:
zesWhat is difference between emisArraydwjeil and hvqhhuArrayListfwunj? When will you use frvnlulArrayqhlytsz over ypjwzArrayListnhh?ybtkuo
Arraydwjeil and hvqhhuArrayListfwunj? When will you use frvnlulArrayqhlytsz over ypjwzArrayListnhh?ybtkuoQ47EYg3V:
oshgWhat is the main difference between gtloeStringBufferswexk and kbelczyStringBuilderqbsu?lwa
StringBufferswexk and kbelczyStringBuilderqbsu?lwaQ481DwR:
cbzofWhat is qidfgxydeprJava Priority Queuemwzavhflpyruv?npufa
Q498RKL:
fgjhlExplain different ways of creating a thread. Which one would you prefer and why?izgbhwo
Q50MT7:
aaoWhat is the importance of vsacrhashCode()xjjthyf and xbdsequals()rnniz methods? ibakj
hashCode()xjjthyf and xbdsequals()rnniz methods? ibakjQ51b3Z:
fafkWhat is the rpicfvolatilelhaqi keyword useful for?gckx
volatilelhaqi keyword useful for?gckxQ52VDpma:
cfouiCan qoxh==tsw be used on fzlhlenumcmma?hjtppd
==tsw be used on fzlhlenumcmma?hjtppdQ53pYHFZ:
pzzrgwWhat do the ngeh...tzln dots in the method parameters mean?cpaajl
...tzln dots in the method parameters mean?cpaajlQ54Oqm:
gsuekWhy does Java have tmsjzsvpldtransient fieldspgphkvl?xwyeid
Q55zaG:
gbfpnndIs Java kwaqzofeapass-by-referencesdeomwggmp or tlzyfrlwpass-by-valuecrjnxrl?jsekkxh
Q56TmQ:
itedqpWhat is qgoliolxbvestatic initializerzlthlkqzmbwo?kjtht
Q57TA3Pg:
zmdWhat's the advantage of using lmeugdrrdlafgettersigzjeqcj and ccnedjdlcyisettersngcbqfbggsl?dzvlm
Q58EqO:
rejbWhat is the difference between wwoppublicwczoad, fvjapprotectedcqml, unfupackage-privatertys and pyyprivatewfulkfb in Java?bdukdmi
publicwczoad, fvjapprotectedcqml, unfupackage-privatertys and pyyprivatewfulkfb in Java?bdukdmiQ597Wzs:
xtfjsWhat is the difference between zdqsnbHashMapspx, auadiLinkedHashMapesck and fwgsrarTreeMapnxujy in Java?ioqe
HashMapspx, auadiLinkedHashMapesck and fwgsrarTreeMapnxujy in Java?ioqeQ60iPQGm:
hrrHow and where are yifvvdvbhpAnnotationsmkrbcqksrn used in Java?tkab
Q61ucXr:
azuWhat is the ouvdejkcbzJava Classloaderlaanqjzgx?cmvipj
Q6284WH:
aoyfCan an xeustbrenumlen be sureaychtunextendedsaijxguxeewwzd?gvwt
enumlen be sureaychtunextendedsaijxguxeewwzd?gvwtQ63fgBEZ:
kpwrgwkWhat is a qgrchwJavaBeanfcsnirjvi exactly?dig
Q64uh0:
dnptgWhat is the gszytkuJITuzaiee?bnogg
Q65PKUok:
pzlcobWhat are the advantages of JSP?uzxtfb
Q66cD84X:
ebymmHow do I break out of iytgualnested loopsssudcxxgv in Java?rawsib
Q670vKUO:
dhpwfHow can I synchornize two Java processes?kklhe
Q68q3tli:
syjyWhat’s the difference between a eudrajClassNotFoundExceptionxql and ohbuNoClassDefFoundErrortsh?pppzz
ClassNotFoundExceptionxql and ohbuNoClassDefFoundErrortsh?pppzzQ69EBHos:
rhifCan you access vlccwkznon static variablekrgzywaobxn in xgsvsbnostatic contextmslbytyvinh?maali
Q70RTr:
wjwrWhat is the difference between yuydvbfinalstndpkw, tioqlbhfinalizevjh and swdfinallytcvr?tqcwei
finalstndpkw, tioqlbhfinalizevjh and swdfinallytcvr?tqcweiQ718QN:
dtxgWhat are the ywrrhnfrrestrictionszfgwacfmxqsku imposed on Java applets?nqi
Q72txOiN:
ynrxWhat is the role of iieystubsrjindx in RMI?fkhzef
stubsrjindx in RMI?fkhzefQ73aZFYf:
ffpabkqWhat is the difference between zxfvftoGenericServletncax and wdnndHttpServletfarxmf?pbbcez
GenericServletncax and wdnndHttpServletfarxmf?pbbcezQ74fy6:
eoklWhat are zfstgqnScriptletsbakettvgiu?ijq
Q75Y1GC:
juxavoExplain the lznqyoqrjvlife cyclegpgklche of an Applet. gmc
Q76Tv1V3:
xcfxpvlExplain the cfvvnqitewlife cyclempwbsg of a Servlet.tinfogk
Q779qO:
ecwsfyWhich Swing methods are qswlnwfxrarthread-safeedqawezcw?cerhonr
Q78hLbT:
crxltWhat’s a pjfttdmgdeadlockrhfkvtdigy? fxq
Q79l00:
gchsWhat is the tradeoff between using an zajqmpjgvjunordered arraymahofdbnj versus an mgtrhdleiethordered arraymzshcf? tvat
Q80Kszu5:
bdqwtzuWhat is the difference between zljqdoGet()kndfic and shnzfdoPost()mefdur?uoxsigh
doGet()kndfic and shnzfdoPost()mefdur?uoxsighQ81yp0:
hrkvzzWhat is structure of Java tvuyjsHeappxntsu?ljof
Heappxntsu?ljofQ82hIHcL:
zchgWhat differences exist between kgskIteratorzawp and netupuListIteratordgii? ziivwx
Iteratorzawp and netupuListIteratordgii? ziivwxQ83bL4:
tpihockHow does wfowuxxfinallywhwij block differ from cnkhzfinalize()wfhi method?affyyuc
finallywhwij block differ from cnkhzfinalize()wfhi method?affyyucQ84gkshy:
qadsuExplain the role of hakcsrgfDriverhnxkhlczcfo in JDBC. mxhiftq
Q85qzqTx:
frhsmWhat is the difference between gtnezthrowuev and wwktpthrowsdrosd?haqqkmv
throwuev and wwktpthrowsdrosd?haqqkmvQ86xptU:
gnckWhat is glmecrqComparablebebqr and ojkComparatoreivb interface? List their differences.oda
Comparablebebqr and ojkComparatoreivb interface? List their differences.odaQ87p03P:
vfkWhat are zgghkmbuuntrusted appletsenymoigkfam?dcmskxw
Q887TD:
uuloveWhat is difference between uqpoArrayListyusljzr and ficezfLinkedListgmaqn? ixyol
ArrayListyusljzr and ficezfLinkedListgmaqn? ixyolQ89bWx9:
dyoicyWhat is the difference between an scgihxriAppletlghfqlifu and a hppogdxiydbServletvljshbhgxqe?vblqf
Q902NXi:
qmkqWhat are the steps involved to make work a RMI program? qoyos
Q910TPD:
gcdyWhy mvjndnhCollectionjovofvsyjg doesn’t extend xkqCloneablegraxxk and fvjSerializableayf interfaces? zxunfc
Cloneablegraxxk and fvjSerializableayf interfaces? zxunfcQ926Qt8D:
gghojIf an object reference is set to umevwanullqrj, will the Garbage Collector immediately free the memory held by that object?uwtlajo
nullqrj, will the Garbage Collector immediately free the memory held by that object?uwtlajoQ935HDV:
qgldzhkWhat is a rtgscrConstructorulxaqx, pkmiwyfiConstructor Overloadingisyszahhjif and fdpagojtCopy-Constructorjmsriqhrgru in Java ? lihuui
Q94UZ17:
zcdsWhat’s the difference between fxdEnumerationvmlcxq and brqdltxIteratorqozph interfaces? bfm
Enumerationvmlcxq and brqdltxIteratorqozph interfaces? bfmQ95qBwOS:
kuin What is a dxuegonvtaautServer Side Include (SSI)hzeuzvfij?cds
Q96SArL:
yezpDoes Java support jsuvdahndtmultiple inheritancevdfinpmgaho? phpcv
Q97KUSi4:
bbkyilWhat is the relationship between an zhhzbreqevent-listener interfacevywgzjf and an edwnckwultypevent-adapter classfrfjzavdoad?tas
Q98I4cBB:
udcfqWhat is the mxfkgrfzlidjapplet security managerzhhrjxqabgucf, and what does it provide?rctax
Q999Oor:
sqzbsigWhat happens when an Applet is rtdditygdfwxloadedvrketcb?yndgp
Q100OKda:
gsaeWhen is the knjwfinalize()cdmrvl called? What is the purpose of finalization? uaprh
finalize()cdmrvl called? What is the purpose of finalization? uaprhQ101tgh:
cmywiuxWhat are some of the dqtqjuhlkscbest practicesylkvxysoixjggt relating to the Java Collection Framework?udpfuf
Q10262j:
wwajcrlWhy is qifzceachar[]wsfhl preferred over tdyStringmdp for passwords?jfx
char[]wsfhl preferred over tdyStringmdp for passwords?jfxQ103usxI:
ylipWhat are the differences between a ciacfwHashMapwaae and a tftweHashTablesjzejh in Java?vla
HashMapwaae and a tftweHashTablesjzejh in Java?vlaQ104mj0F:
cpntWhat exactly is dwlmarkerjrp interface in Java?mcgajv
markerjrp interface in Java?mcgajvQ105tSG:
aafemqWhen to use bflLinkedListkyfx over iymtzrnArrayListtjgsl in Java?yytwxjm
LinkedListkyfx over iymtzrnArrayListtjgsl in Java?yytwxjmQ106oW0:
wajaptuWhy is Spring MVC better than Servlets / JSP ?vft
Q107bKOX3:
fsqcskExplain a use case for the ictvtccgfgsBuildermgrxpkjhihkaot Design Patterngouim
Q108memn5:
nwd What is the difference between Applets loaded over the internet and Applets loaded via the file system?xgbs
Q109A2Ulc:
axiehHow do you ensure that wijzyNzzwjdqh threads can access tnxtjzNxzfcehr resources without deadlock? vgvlrke
Nzzwjdqh threads can access tnxtjzNxzfcehr resources without deadlock? vgvlrkeQ110d0RB:
ohdmDoes Java support rhvfvnkdefault parameter valuesvhtrcrlzhr?iqfwzq
Q111Y8X:
upcnzpWhat is the purpose of using fqrmtbhcRMISecurityManagernqhzrpnpu in RMI?mbtut
Q112CLESv:
weaWhat is the role of the zrkkgejava.rmi.Namingbeh Class? enc
java.rmi.Namingbeh Class? encQ113tlGw:
wubposaWhat is the main difference between an hhygezpzrinner classdkcoxzqzvhp and a hlkoeacqqxstatic nested classcyzbzumhcd in Java?xcl
Q114kj8t:
Related To: Swift
fwryAre there any differences between wkpijProtocolxml in Swift vs rlvInterfacepdyeom in Java?qgg
Related To: SwiftProtocolxml in Swift vs rlvInterfacepdyeom in Java?qggQ116rKDWT:
erlvloeWhat is qwlnvgnfnmsloServlet Chainingmvcifagdukfao?zfr
Q117vjMO:
savWhat is the qxtlrnzuxdirwbasic principleusydna of fgvrfowuRMI architectureuduibta?mouk
Q118FEmL:
ktmWhat does ssgsvjnwimConnection Poolinglrsclrboqspyw mean?fatbn
Q119nyy1:
xraWhat is meant by ggwdsdotjfoqbindingzgpckafmacvj in RMI?vgufva
Q120C06AT:
tlgwHow do you find out what client machine is making a request to your servlet?kwcl
Q121ycS:
zhhiExplain thlzhzsqlMarshallingqcfnqfmh and xdvujupwwDemarshallingeziceliisw.isi
Q122DSwRF:
aulpxqnWhat is the djisfsxavfmapplet class loaderxjgulkritmmee, and what does it provide?zdgbyj
Q123ic0:
eocoWhat is the difference between a djsfesshbiksynchronized methodvagolfhwls and a jeyikyhonpsynchronized blockanrbecb?tafwwzx
Q124TwQA:
rqubdnWhat is oyljkoztDouble Brace initializationegijiaccrijo in Java?trxo
Q125MRQ:
xptHow do I test a private function or a class that has private methods, fields or inner classes?rdek
Q1261gOK7:
ntjWhat is rcadvkewwfPerm Geniletkxdoe space in eabHeapebskwdw?ipo
Heapebskwdw?ipoQ127sxD:
eboftWhat is the difference between xzfvlufytSerialtqsorrbwfxv and ncgzgzkjThroughputsqdtbq Garbage collector?ygbk
Q128sxqC:
rqugfcExplain the available tmjyasaolthread statesspydxgepbfq in a high-level.vkp
Q129TNCCF:
oxnwWhat is the role of ywrvzebnlnnmRemote Interfacedbdkllihcar in RMI?tnoq
Q1304Fe:
elrprcWhat is jpyaqhtkxRMImupllemhbqi?fqdl
Q131dQN:
zgyduDoes Garbage collection occur in permanent generation space in JVM?jfvf
Q132L69T:
uspWhat does jcyvsynchronizedexsori mean?iwac
synchronizedexsori mean?iwacQ133yGY:
xinsWhat are the snbjtcchgalayersgmxhodddky of RMI Architecture?tpskfh
Q134X48rx:
tpmcgWhat is moqaglhdzpiDGCngpjfcmoo? And how does it work?firpeiw
Q135sLbI:
somlwciWhat is the difference between mlnskdwHashSetvzrwsty and cpzhxTreeSetxrp?sqr
HashSetvzrwsty and cpzhxTreeSetxrp?sqrQ136QrIz:
xpgmWhat's wrong with uoudurytzisqhwDouble Brace Initializationeyqmthjppcl in Java?ljfrmp
Q13754HO7:
snmrjwyHow does thread synchronization occurs inside a soxznmonitortvre? What levels of synchronization can you apply? ikzs
monitortvre? What levels of synchronization can you apply? ikzsQ138E4ikr:
exnjWhy isn’t String‘s latxlength()ibbce accurate?cbupb
length()ibbce accurate?cbupbQ1392L6F:
bgtmzvProvide some examples when a ubujbhfinallyxydx block itcusofduwon't be executedebmtiuygapk in Java?uqkjm
finallyxydx block itcusofduwon't be executedebmtiuygapk in Java?uqkjmQ140KSzSo:
razwnvCompare rsfkvolatileheef vs gdfhxstaticfelxtun variables in Javaywbr
volatileheef vs gdfhxstaticfelxtun variables in JavaywbrQ141KMoI:
zikdmeWhy jsbzpirArrayListqdsyo are preferable in many more use-cases than csxqnrzLinkedListgvuwzsz?cbnc
ArrayListqdsyo are preferable in many more use-cases than csxqnrzLinkedListgvuwzsz?cbncQ142NJE8b:
jsqWhat's the difference between xbcrumcSoftReferencelnabp and ytmWeakReferenceriv in Java?anfh
SoftReferencelnabp and ytmWeakReferenceriv in Java?anfhQ143T7x:
hieWhat is an efficient way to implement a kuzayiicwhvtqsingleton patternqsoudgiucqkx in Java?ujq
Code Challenges
Q1UEJKh:
zhtvHow do I efficiently ppofluujziziteraterivozmf over each entry in a Java iikkzMapripad?vfn
Mapripad?vfnQ2FbIcv:
JSJavaPY Related To: Fibonacci Series, Data Structures, JavaScript
cfaunsReturn the N-th value of the Fibonacci sequence Recursivelyaauzf
JSJavaPY Related To: Fibonacci Series, Data Structures, JavaScriptQ36AmQS:
CSJSJavaPY Related To: Queues, Stacks, C#, JavaScript
zgfkImplement a Queue using two Stacksubkzh
CSJSJavaPY Related To: Queues, Stacks, C#, JavaScriptQ4wo8Pl:
JavaPY Related To: Stacks
vdccDesign a Stack that supports retrieving the min element in daleO(1)
JavaPY Related To: StacksO(1)Q5UurO:
Java Related To: Linked Lists
umqkaHow to reverse a singly Linked List using only two pointers?ivob
Java Related To: Linked ListsQ6QM0kP:
JSJavaPY Related To: Arrays, Data Structures, JavaScript, Python
bdqowmpHow to merge two sorted libswrixrArraysazgcvvblt into a bzcfaeyzdaoozSorted Arrayuvnnzjwdrjk?kerxnjg
JSJavaPY Related To: Arrays, Data Structures, JavaScript, PythonQ7hT4n:
CSJavaPY Related To: Strings, Data Structures, C#
ovgHow to check if two Strings (words) are krezsnmuAnagramsmkwskkd?ntvpoqf
CSJavaPY Related To: Strings, Data Structures, C#Q8omB:
JSJavaPY Related To: Searching, Python, JavaScript
ugpilWrite a program for Recursive Binary Searchjdlmms
JSJavaPY Related To: Searching, Python, JavaScriptQ9APK:
JSJavaPY Related To: Backtracking, Strings, Data Structures, Python, JavaScript
gpxmuFind all the haffrnPermutationsvlxidfgvjafl of a Stringlmzl
JSJavaPY Related To: Backtracking, Strings, Data Structures, Python, JavaScriptQ1006nj8:
JSJavaPY Related To: Stacks, Python, JavaScript
zklqsCheck if parentheses are balanced using Stackmco
JSJavaPY Related To: Stacks, Python, JavaScriptQ12jJuT:
wrxneluHow do I read/convert an titInputStreamwkdyq into a qhdStringudblbyw in Java?focjja
InputStreamwkdyq into a qhdStringudblbyw in Java?focjjaQ13mVd:
Java Related To: Linked Lists
ifkburqFloyd's Cycle Detect Algorithm: Explain how to find a starting node of a Cycle in a Linked List?byqirp
Java Related To: Linked ListsQ14XveS:
wfufrWhat is the use of dzmzCallableStatementdhyxx? Name the method, which is used to prepare a xuahnjCallableStatementbkdtffl.blnm
CallableStatementdhyxx? Name the method, which is used to prepare a xuahnjCallableStatementbkdtffl.blnmQ15U8Yv:
terzIs it possible to call one constructor from another in Java?bad
Q16gI6T:
rqxeGiven two double values ohefxd1onsnriv, bndhd2ykkpwpw, what is the most reliable way to test their qfvtfblxequalitypgxytzefhj? nwno
d1onsnriv, bndhd2ykkpwpw, what is the most reliable way to test their qfvtfblxequalitypgxytzefhj? nwnoQ17xMfB:
Java Related To: Binary Tree, Stacks
teyxaqoBuild a Binary Expression Tree for this expressiondudcxyt
Java Related To: Binary Tree, StacksQ18yN7j:
cifhzfbIs vervocsnullnmk check needed before calling dyjinstanceofjxlyic?yta
nullnmk check needed before calling dyjinstanceofjxlyic?ytaQ199SS:
JavaPY Related To: Fibonacci Series, Matrices
miliGet Fibonacci Number in coysrziOrqnwmjbotkt(mhqexswoakmllog ndoobxvmac)wmhmzohwqayk time using Matrix Exponentiationcbzq
JavaPY Related To: Fibonacci Series, MatricessrziOrqnwmjbotkt(mhqexswoakmllog ndoobxvmac)wmhmzohwqayk time using Matrix ExponentiationcbzqQ206qq0Z:
JavaPY Related To: Linked Lists, Python
webcuaGiven a singly Linked List, determine if it is a Palindromekaieyg
JavaPY Related To: Linked Lists, PythonQ21mh1Q:
Java Related To: Binary Tree
vzzmqpWhat is Morris Traversal for a Tree and how to implement one?vra
Java Related To: Binary TreeQ22RO6X0:
ynqnckExplain what will the code returnuri
Rust has been Stack Overflow’s most loved language for four years in a row and emerged as a compelling language choice for both backend and system developers, offering a unique combination of memory safety, performance, concurrency without Data races...
Clean Architecture provides a clear and modular structure for building software systems, separating business rules from implementation details. It promotes maintainability by allowing for easier updates and changes to specific components without affe...
Azure Service Bus is a crucial component for Azure cloud developers as it provides reliable and scalable messaging capabilities. It enables decoupled communication between different components of a distributed system, promoting flexibility and resili...
Cosmos DB has gained popularity among developers and organizations across various industries, including finance, e-commerce, gaming, IoT, and more. Follow along and learn the 24 most common and advanced Azure Cosmos DB interview questions and answers...
More than any other NoSQL database, and dramatically more than any relational database, MongoDB's document-oriented data model makes it exceptionally easy to add or change fields, among other things. It unlocks Iteration on the project. Iteration f...
Unit Tests and Test Driven Development (TDD) help you really understand the design of the code you are working on. Instead of writing code to do something, you are starting by outlining all the conditions you are subjecting the code to and what outpu...
Domain-Driven Design is nothing magical but it is crucial to understand the importance of Ubiquitous Language, Domain Modeling, Context Mapping, extracting the Bounded Contexts correctly, designing efficient Aggregates and etc. before your next DDD p...
At its core, Microsoft Azure is a public cloud computing platform - with solutions including Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS) that can be used for services such as analytics, virtual c...
As an asynchronous event-driven JavaScript runtime, Node.js is designed to build scalable network applications. Follow along to refresh your knowledge and explore the 52 most frequently asked and advanced Node JS Interview Questions and Answers every...
Dependency Injection is most useful when you're aiming for code reuse, versatility and robustness to changes in your problem domain. DI is also useful for decoupling your system. DI also allows easier unit testing without having to hit a database and...
FullStack.Cafe is a biggest hand-picked collection of top Full-Stack, Coding, Data Structures & System Design Interview Questions to land 6-figure job offer in no time.
Coded with 🧡 using React in Australia 🇦🇺
by @aershov24, Full Stack Cafe Pty Ltd 🤙, 2018-2023
Privacy • Terms of Service • Guest Posts • Contacts • MLStack.Cafe
Great 
based on 86 Trustpilot 
Reviews
based on 86 Trustpilot Reviews