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DEPARTMENT OF COMPUTER SCIENCE

AND ENGINEERING

P

Lecture Notes

Course: Advance Java Programming

Course Code: OE25

Faculty: Shwetha A N

P I

SIDDAGANGA INSTITUTE OF TECHNOLOGY

TUMKUR-3

and Accredited by NBA, New Delhi

Advance Java Programming

Unit 5 soteM

JlII Fwkti tier ArcSitectwre

Web srviscbu lutecsbtsnub gbJb2gE eblocmp v2 fbbJc2a tmcb2s Evysrlub nJglsbgd recte cE hvse gcyyctnms sv .lc2slc2 l2g tvEsmp sv gbJmvp c2 l mluab tvuJvulscv2O TbhihlEbgd .nmsciscbu EpEsb.E gv2qs ubwncub tmcb2s Evysrlub sv hb nJaulgbg reb2bobu JubEb2slscv2 l2g yn2tscv2lmcsp vy l2 lJJmctlscv2 lub tel2abgO uiMtriywtive 2EMtemM

Web tv2tbJs vy .nmsciscbu lutecsbtsnub elE bovmobg vobu gbtlgbEd yvmmvrc2a l Ec.cmlu

bovmnscv2lup tvnuEb lE Juvaul..c2a ml2anlabEO Web fbp vhSbtscob vy .nmsciscbu lutecsbtsnub cE sv Eelub ubEvnutbE l.v2aEs tmcb2sEO Web ycuEs bovmnscv2 c2 Juvaul..c2a ml2anlabE cg PEEb.hmp ml2anlabO Ivysrlub EbuoctbE tv2EcEs vy Enhuvnsc2bE rucssb2 c2 lEEb.hmp ml2anlab sels tv..n2ctlsb rcse blte vsebu nEc2a .ltec2b ubacEsbuEd recte lub .b.vup EJltbE rcsec2 seb Lk, vy l .ltec2bO Teb2bobu l Juvaul..bu ubwncubg yn2tscv2lmcsp Juvocgbg hp l Evysrlub Ebuoctbd seb Juvaul..bu tlmmbg seb lJJuvJuclsb lEEb.hmp ml2anlab Enhuvnsc2b yuv. rcsec2 seb Juvaul.O Web gulrhltf vy secE cE PEEb.hmp ml2anlab Enhuvnsc2bE rbub .ltec2b EJbtcyct l2g tvnmg2qs hb blEcmp ubJmctlsbg v2 gcyybub2s .ltec2bEO WecE .bl2s sels Enhuvnsc2bE elg sv hb ubrucssb2 yvu blte .ltec2bO Web 2bAs bovmnscv2 cE MxUWUP( l2g Lx)x+O kuvaul.E rucssb2 c2 MxUWUP( tvnmg Eelub yn2tscv2lmcsp hp nEc2a yn2tscv2E c2Esblg vy lEEb.hmp ml2anlab Enhuvnsc2bEO Web El.b rlE sunb vy Juvaul.E rucssb2 c2 Lx)x+O Mn2tscv2E lub 2vs .ltec2b EJbtcyctd Ev yn2tscv2E tvnmg un2 v2 gcyybub2s .ltec2bE hp ubtv.Jcmc2a seb yn2tscv2O Ps sels sc.b sebub rlE l gulrhltf rcse glsl bAtel2ab sels cE .la2bsct slJbE rbub nEbg sv sul2Eybu glsld Juvaul.Ed l2g Evysrlub EbuoctbE sv l2vsebu .ltec2bO Webub rlE2qs l ublmisc.b sul2E.cEEcv2 EpEsb.O peak !ime !ranMmiMMion Ublmisc.b sul2E.cEEcv2 tl.b lhvns rcse seb c2suvgntscv2 vy seb ,(,- vJbulsc2a EpEsb.O Web ,(,- vJbulsc2a EpEsb. tv2slc2E EnJJvus yvu Wul2E.cEEcv2 Lv2suvm kuvsvtvm.,2sbu2bs kuvsvtvm /WLk.,k0d recte cE l Esl2glug sels EJbtcycbE evr sv tublsbd sul2Emlsbd l2g tv2suvm sul2E.cEEcv2E hbsrbb2 .ltec2bE vobu l tv.Jnsbu 2bsrvufO Ub.vsb kuvtbgnub Llmm /UkL0 gbyc2bg l rlp sv Eelub yn2tscv2E rucssb2 c2 l2p Juvtbgnulm ml2anlab Ente lE MxUWUP(d Lx)x+d l2g seb L Juvaul..c2a ml2anlabO WecE .bl2s sels Evysrlub EbuoctbE rbub 2v mv2abu mc.csbg sv l .ltec2bO P2vsebu c.Jvusl2s gbobmvJ.b2s c2 seb bovmnscv2 vy gcEsuchnscob EpEsb.E tl.b rcse seb gbobmvJ.b2s vy b-sbu2lm 1lsl UbJubEb2slscv2 /-1U0 sv bAtel2ab tv.JmbA glsl EsuntsnubE hbsrbb2 Juvaul.E l2g yn2tscv2EO

2o"t#are $y%ectM

Web 2bAs bovmnscv2lup EsbJ c2 Juvaul..c2a ml2anlab alob hcuse sv vhSbtsivucb2sbg ml2anlabE Ente lE L22 l2g 3lolO kuvtbgnulm ml2anlabE yvtnEbg v2 yn2tscv2lmcspd rebub l Juvaul. rlE vual2c4bg c2sv yn2tscv2E sels tv2slc2bg Eslsb.b2sE l2g glsl sels rbub 2btbEElup sv bAbtnsb l slEfO kuvaul.E rucssb2 c2 l2 vhSbtsivucb2sbg ml2anlab rbub vual2c4bg c2sv Evysrlub vhSbtsEd 2vs hp yn2tscv2lmcspO P Evysrlub vhSbts cE l Evysrlub Ebuoctb sels tl2 hb nEbg hp l Juvaul.O Pmsevnae vhSbtsE l2g Juvaul.E tvnmg nEb UkL yvu tv..n2ctlscv2d UkL rlE gbEca2bg luvn2g Evysrlub EbuoctbE hbc2a yn2tscv2lmmp tb2suct l2g 2vs EvysrlubivhSbtsi tb2suctO WecE .bl2s cs rlE n22lsnulm yvu Juvaul.E sv tlmm Evysrlub vhSbtsE nEc2a UkLO P 2br Juvsvtvm rlE 2bbgbg sels tvnmg 2lsnulmmp tlmm Evysrlub vhSbtsEO Ic.nmsl2bvnEmp srv JuvsvtvmE rbub gbobmvJbg sv lttbEE Evysrlub vhSbtsEO WebEb rbub Lv..v2 xhSbts UbwnbEs )uvfbu Putecsbtsnub /LxU)P0 l2g 1cEsuchnsbg Lv..v2 xhSbts 5vgbm /1Lx50O &ey 2erviceM Web 2bAs bovmnscv2 vy Evysrlub EbuoctbE rlE hvu2 l2g rlE tlmmbg rbh EbuoctbEO Weubb 2br Esl2glugE rbub gbobmvJbg rcse seb c2suvgntscv2 vy rbh EbuoctbEO WebEb lub Tbh IbuoctbE

1bEtucJscv2 +l2anlab /TI1+0d ,2cobuElm 1bEtucJscv2d 1cEtvobupd l2g ,2sbaulscv2 /,11,0d

l2g Ibuoctb xucb2sbg Putecsbtsnub kuvsvtvm /IxPk0O kuvaul..buE nEb TI1+ sv JnhmcEe sebcu rbh Ebuoctbd sebubhp .lfc2a seb rbh Ebuoctb lolcmlhmb sv vsebu Juvaul..buE vobu seb 2bsrvufO P Juvaul..bu nEbE ,11, sv mvtlsb rbh EbuoctbE sels elob hbb2 JnhmcEebg l2g nEbE IxPk sv c2ovfb l Jlusctnmlu rbh EbuoctbO !Se !ier P scbu cE l2 lhEsults tv2tbJs sels gbyc2bE l auvnJ vy sbte2vmvacbE sels Juvocgb v2b vu .vub EbuoctbE sv csE tmcb2sEO P avvg rlp sv n2gbuEsl2g l scbu EsuntsnubqE vual2c4lscv2 cE hp n2gbuEsl2gc2a seb vual2c4lscv2 vy mluab tvuJvulscv2O Ps seb mvrbEs mbobm vy l tvuJvulscv2 lub yltcmcscbE EbuoctbE sels tv2EcEs vy ubEvnutbE 2btbEElup sv .lc2slc2 seb vyyctb hncmgc2aO MltcmcscbE EbuoctbE b2tv.JlEE l rcgb olucbsp vy ubEvnutbE sels spJctlmmp c2tmngb bmbtsuctcspd ob2scmlscv2d bmbolsvu EbuoctbEd tv.Jnsbu 2bsrvuf EbuoctbEd l2g sbmbJev2b EbuoctbEO Web 2bAs scbu c2 seb vual2c4lscv2 tv2slc2E EnJJvus ubEvnutbE Ente lE lttvn2sc2ad EnJJmcbEd tv.Jnsbu Juvaul..c2ad l2g vsebu ubEvnutbE sels EnJJvus seb .lc2 ltscocsp vy seb tv.Jl2pO Phvob seb EnJJvus scbu cE seb Juvgntscv2 scbuO Web Juvgntscv2 scbu elE seb ubEvnutbE 2btbEElup sv Juvgntb JuvgntsE l2g EbuoctbE Evmg hp seb tv.Jl2pO Web ecaebEs scbu cE seb .lufbsc2a scbud recte tv2EcEsE vy ubEvnutbE nEbg sv gbsbu.c2b seb JuvgntsE l2g EbuoctbE sv Ebmm sv tnEsv.buEO P2p ubEvnutb cE tv2Ecgbubg l tmcb2s reb2 l ubEvnutb Eb2gE l ubwnbEs yvu Ebuoctb sv l Ebuoctb Juvocgbu /lmEv ubybuubg sv lE l Ebuoctb0O P Ebuoctb cE l2p ubEvnutb sels ubtbcobE l2g ynmycmmE l ubwnbEs yuv. l tmcb2sd l2g sels ubEvnutb csEbmy .caes elob sv .lfb ubwnbEsE sv vsebu ubEvnutbE sv ynmycmm l tmcb2sqE ubwnbEsO +bsqE Elp sels l Juvgnts .l2labu rvufc2a ls seb .lufbsc2a scbu gbtcgbE seb tv.Jl2p tvnmg .lfb l Juvycs hp Ebmmc2a tnEsv.buE l rcgabsO Web Juvgnts .l2labu ubwnbEsE l2 lttvn2sl2s sv tv2gnts l yvu.lm tvEs l2lmpEcE vy .l2nyltsnuc2a l rcgabsO Web lttvn2sl2s cE v2 seb EnJJvus scbu vy seb vual2c4lscv2O Web Juvgnts .l2labu cE seb tmcb2s l2g seb lttvn2sl2s cE seb EbuoctbO

6vrbobud seb lttvn2sl2s ubwncubE c2yvu.lscv2 yuv. seb .l2nyltsnuc2a .l2labu sv ynmycmm seb

Juvgnts .l2labuqE ubwnbEsO Web .l2nyltsnuc2a .l2labu rvufE v2 seb Juvgntscv2 scbu vy seb vual2c4lscv2O Web lttvn2sl2s cE seb tmcb2s sv seb .l2nyltsnuc2a .l2labu rev cE seb Ebuoctb sv seb lttvn2sl2sO P tmcb2s cE tv2tbu2bg lhvns Eb2gc2a l ubwnbEs yvu Ebuoctb l2g ubtbcoc2a ubEnmsE yuv. l EbuoctbO P tmcb2s cE2qs tv2tbu2bg lhvns evr l Ebuoctb JuvocgbE seb ubEnmsEO IbuoctbE tl2 hb .vgcycbg lE tel2abE vttnu c2 seb yn2tscv2lmcsp rcsevns lyybtsc2a seb tmcb2s Juvaul.O 'kientM( peMowrceM( and 'om)onentM

5nmsciscbu lutecsbtsnub cE tv.JvEbg vy tmcb2sEd ubEvnutbEd tv.Jv2b2sEd l2g tv2slc2buEO P tmcb2s

ubybuE sv l Juvaul. sels ubwnbEsE Ebuoctb yuv. l tv.Jv2b2sO P ubEvnutb cE l2psec2a l tv.Jv2b2s 2bbgE sv Juvocgb l Ebuoctbd l2g l tv.Jv2b2s cE Jlus vy l scbu sels tv2EcEsE vy l tvmmbtscv2 vy tmlEEbE vu l Juvaul. sels Jbuyvu.E l yn2tscv2 sv Juvocgb seb EbuoctbO P tv2slc2bu cE Evysrlub sels .l2labE l tv.Jv2b2s l2g JuvocgbE l tv.Jv2b2s rcse EpEsb. EbuoctbEO

AcceMMing 2erviceM

P tmcb2s nEbE l tmcb2s Juvsvtvm sv lttbEE l Ebuoctb sels cE lEEvtclsbg rcse l Jlusctnmlu scbuO Webub lub l 2n.hbu vy JuvsvtvmE sels lub nEbg rcsec2 l .nmsciscbu c2yulEsuntsnub hbtlnEb blte scbu.tv.Jv2b2s.ubEvnutb tvnmg nEb gcyybub2s JuvsvtvmEO x2b vy seb .vEs tv..v2mp c.Jmb.b2sbg .nmsciscbu lutecsbtsnubE cE nEbg c2 rbhitb2suct lJJmctlscv2E rebub huvrEbuE lub nEbg sv c2sbults rcse tvuJvulsb v2mc2b ubEvnutbEO P huvrEbu cE l tmcb2s l2g ubwnbEsE l Ebuoctb yuv. l rbh Ebuobu nEc2a 6WWkO

JlII Fwkti !ier ArcSitectwre

3788 cE l yvnuiscbu lutecsbtsnubO WebEb tv2EcEs vy seb Lmcb2s Wcbu /Ev.bsc.bE ubybuubg sv lE seb

kubEb2slscv2 Wcbu vu PJJmctlscv2 Wcbu0d Tbh Wcbud 82sbuJucEb 3lol)bl2E Wcbu /Ev.bsc.bE ubybuubg sv lE seb )nEc2bEE Wcbu0d l2g seb 82sbuJucEb ,2yvu.lscv2 IpEsb.E WcbuO 8lte scbu cE yvtnEbg v2 Juvocgc2a l EJbtcyct spJb vy yn2tscv2lmcsp sv l2 lJJmctlscv2O Web Lmcb2s Wcbu tv2EcEsE vy Juvaul.E sels c2sbults rcse seb nEbuO WebEb Juvaul.E Juv.Js seb nEbu yvu c2Jns l2g seb2 tv2obus seb nEbuqE ubEJv2Eb c2sv ubwnbEsE sels lub yvurlugbg sv Evysrlub v2 l tv.Jv2b2s sels JuvtbEEbE seb ubwnbEs l2g ubsnu2E ubEnmsE sv seb tmcb2s Juvaul.O Web tv.Jv2b2s tl2 vJbulsb v2 l2p scbud lmsevnae .vEs ubwnbEsE yuv. tmcb2sE lub JuvtbEEbg hp tv.Jv2b2sE v2 seb Tbh WcbuO Web tmcb2s Juvaul. lmEv sul2EmlsbE seb EbuobuqE ubEJv2Eb c2sv sbAs l2g Etubb2E sels lub JubEb2sbg sv seb nEbuO Web Tbh Wcbu JuvocgbE ,2sbu2bs yn2tscv2lmcsp sv l 3788 lJJmctlscv2O Lv.Jv2b2sE sels vJbulsb v2 seb Tbh Wcbu nEb 6WWk sv ubtbcob ubwnbEsE yuv. l2g Eb2g ubEJv2EbE sv tmcb2sE sels tvnmg ubEcgb v2 l2p scbuO Mvu bAl.Jmb l tmcb2sqE ubwnbEs yvu glsl sels cE ubtbcobg hp l tv.Jv2b2s rvufc2a v2 seb Tbh Wcbu cE JlEEbg hp seb tv.Jv2b2s sv seb 82sbuJucEb 3lol)bl2E Wcbu rebub l2 82sbuJucEb 3lol )bl2 rvufc2a v2 seb 82sbuJucEb 3lol)bl2E Wcbu c2sbultsE rcse 1)5I sv ynmycmm seb ubwnbEsO UbwnbEsE lub .lgb sv seb 82sbuJucEb 3lol)bl2E hp nEc2a seb 3lol Ub.vsb 5bsevg ,2ovtlscv2 /U5,0 Pk,O Web ubwnbEsbg glsl cE seb2 ubsnu2bg hp seb 82sbuJucEb 3lol)bl2E rebub seb glsl cE seb2 yvurlugbg sv seb Tbh Wcbu l2g seb2 ubmlpbg sv seb Lmcb2s Wcbu rebub seb glsl cE JubEb2sbg sv seb nEbuO Web 82sbuJucEb 3lol)bl2E Wcbu tv2slc2E seb hnEc2bEE mvact yvu 3788 lJJmctlscv2EO ,sqE ebub rebub v2b vu .vub 82sbuJucEb 3lol)bl2E ubEcgbd blte b2tvgbg rcse hnEc2bEE unmbE sels lub tlmmbg nJv2 c2gcubtsmp hp tmcb2sEO Web 82sbuJucEb 3lol)bl2E Wcbu cE seb fbpEsv2b sv bobup 3788 lJJmctlscv2 hbtlnEb 82sbuJucEb 3lol)bl2E rvufc2a v2 secE scbu b2lhmb .nmscJmb c2Esl2tbE vy l2 lJJmctlscv2 sv tv2tnuub2smp lttbEE hnEc2bEE mvact l2g glsl Ev lE 2vs sv c.Jbgb seb Jbuyvu.l2tbO Web 8,I mc2fE l 3788 lJJmctlscv2 sv ubEvnutbE l2g mbaltp EpEsb.E sels lub lolcmlhmb v2 seb tvuJvulsb hltfhv2b 2bsrvufO ,sqE v2 seb 8,I rebub l 3788 lJJmctlscv2 gcubtsmp vu c2gcubtsmp c2sbuyltbE rcse l olucbsp vy sbte2vmvacbEd c2tmngc2a 1)5I l2g .lc2yul.bE sels lub Jlus vy seb .cEEcv2itucsctlm EpEsb.E sels fbbJ seb tvuJvulscv2 vJbulscv2lmO 'kient !ier *m)kementation Web srv tv.Jv2b2sE vy tmcb2s scbu lub lJJmbs tmcb2sE l2g lJJmctlscv2 tmcb2sEO P2 lJJmbs tmcb2s nEbE seb huvrEbu lE l nEbu c2sbuyltbO P2 lJJmctlscv2 tmcb2s cE l 3lol lJJmctlscv2 recte elE csE vr2 nEbu c2sbuyltb l2g cE tlJlhmb vy lttbEEc2a lmm seb scbuE c2 seb .nmsciscbu lutecsbtsnubO P ucte tmcb2s cE l secug spJb vy tmcb2sd hns l ucte tmcb2s cE 2vs tv2Ecgbubg l tv.Jv2b2s vy seb Lmcb2s Wcbu hbtlnEb l ucte tmcb2s tl2 hb rucssb2 c2 l ml2anlab vsebu sel2 3lolO P ucte tmcb2s lmEv elE csE vr2 nEbu c2sbuyltbO 'kaMMi"ication o" 'kientM )bEcgbE gbyc2c2a tmcb2sE lE l2 lJJmbs tmcb2sd lJJmctlscv2 tmcb2sd vu l ucte tmcb2sd tmcb2sE lub lmEv tmlEEcycbg hp seb sbte2vmvap nEbg sv lttbEE tv.Jv2b2sE l2g ubEvnutbE sels lub lEEvtclsbg rcse blte scbuO Webub lub ycob tmlEEcyctlscv2E9 l rbh tmcb2sd 82sbuJucEb 3lol)bl2E tmcb2sd 82sbuJucEb ,2yvu.lscv2 IpEsb. /8,I0 tmcb2sd rbh Ebuoctb JbbuEd l2g l .nmsciscbu tmcb2sO P rbh tmcb2s tv2EcEsE vy Evysrlubd nEnlmmp l huvrEbud sels lttbEEbE ubEvnutbE mvtlsbg v2 seb Tbh WcbuO WebEb ubEvnutbE spJctlmmp tv2EcEs vy rbh JlabE rucssb2 c2 6W5+ vu -5+O 82sbuJucEb

3lol)bl2E tmcb2sE ubEcgbE c2 tmcb2s scbu l2g v2mp lttbEEbE v2b vu .vub 82sbuJucEb 3lol)bl2E sels

lub mvtlsbg v2 seb 82sbuJucEb 3lol)bl2E Wcbu ulsebu sel2 ubEvnutbE v2 seb Tbh WcbuO

8,I tmcb2sE lub seb c2sbuyltb hbsrbb2 nEbuE l2g ubEvnutbE mvtlsbg v2 seb 8,I WcbuO WebEb tmcb2sE

nEb 3lol tv22btsvuEd lJJuvJuclsb Pk,Ed vu JuvJucbslup JuvsvtvmE sv nscmc4b ubEvnutbE Ente lE

1)5I l2g mbaltp glsl EvnutbEO

P rbh Ebuoctb Jbbu cE l n2cwnb spJb vy tmcb2s hbtlnEb csqE lmEv l Ebuoctb sels rvufE v2 seb Tbh WcbuO Wbte2ctlmmpd l rbh Ebuoctb Jbbu yvu.E l JbbuisviJbbu ubmlscv2EecJ rcse vsebu tv.Jv2b2sE v2 seb Tbh Wcbu ulsebu sel2 l sunb tmcb2s.Ebuobu ubmlscv2EecJO

5nmsciscbu tmcb2sE lub tv2tbJsnlmmp Ec.cmlu sv l rbh Ebuoctb Jbbu bAtbJs l .nmsciscbu tmcb2s

lttbEEbE tv.Jv2b2sE mvtlsbg v2 scbuE vsebu sel2 seb scbu rebub seb .nmsciscbu tmcb2s ubEcgbEO

5nmsciscbu tmcb2sE spJctlmmp nEb seb 3lol 5bEElab Ibuoctb /35I0 sv tv..n2ctlsb

lEp2teuv2vnEmp rcse vsebu scbuEO &ey !ier *m)kementation Web Tbh Wcbu elE Ebobulm ubEJv2EchcmcscbE c2 seb 3788 .nmsciscbu lutecsbtsnubd lmm vy recte cE Juvocgbg sv seb Lmcb2s Wcbu nEc2a 6WWkO P Ebuombs cE l 3lol tmlEE sels ubEcgbE v2 seb Tbh Wcbu l2g cE tlmmbg hp l ubwnbEs yuv. l huvrEbu tmcb2s sels vJbulsbE v2 seb Lmcb2s WcbuO P ubwnbEs yvu l Ebuombs tv2slc2E seb EbuombsqE ,U+ l2g cE sul2E.cssbg yuv. seb Lmcb2s Wcbu sv seb Tbh Wcbu nEc2a 6WWkO Web ubwnbEs ab2bulsbE l2 c2Esl2tb vy seb Ebuombs vu ubnEbE l2 bAcEsc2a c2Esl2tbd recte ubtbcobE l2p c2Jns Jlul.bsbuE yuv. seb Tbh Wcbu sels lub 2btbEElup yvu seb Ebuombs sv Jbuyvu. seb EbuoctbO ,2Jns Jlul.bsbuE lub Eb2s lE Jlus vy seb ubwnbEs yuv. seb tmcb2sO P2 c2Esl2tb vy l Ebuombs ynmycmmE seb ubwnbEs hp lttbEEc2a tv.Jv2b2sE.ubEvnutbE v2 seb Tbh Wcbu vu v2 vsebu scbuE lE cE 2btbEElup hlEbg v2 seb hnEc2bEE mvact sels cE b2tvgbg c2sv seb EbuombsO Web Ebuombs spJctlmmp ab2bulsbE l2 6W5+ vnsJns Esubl. sels cE ubsnu2bg sv seb rbh EbuobuO Web rbh Ebuobu seb2 sul2E.csE seb glsl sv seb tmcb2sO WecE vnsJns Esubl. cE l gp2l.ct rbh JlabO

3Ik cE Ec.cmlu sv l Ebuombs c2 sels l 3Ik cE lEEvtclsbg rcse l ,U+ l2g cE tlmmlhmb yuv. l tmcb2sO

6vrbobud 3Ik cE gcyybub2s sel2 l Ebuombs c2 Ebobulm rlpEd gbJb2gc2a v2 seb tv2slc2bu sels cE

nEbgO Iv.b tv2slc2buE sul2Emlsb seb 3Ik c2sv l Ebuombs seb ycuEs sc.b seb tmcb2s tlmmE seb 3Ikd recte cE seb2 tv.Jcmbg l2g seb tv.Jcmbg Ebuombs mvlgbg c2sv .b.vupO Web Ebuombs ub.lc2E c2 .b.vupO InhEbwnb2s tlmmE hp seb tmcb2s sv seb 3Ik tlnEb seb rbh Ebuobu sv ubtlmm seb Ebuombs rcsevns sul2Emlsc2a seb 3Ik l2g tv.Jcmc2a seb ubEnmsc2a tvgbO xsebu tv2slc2buE Jubtv.Jcmb l

3Ik c2sv l OSlol ycmb sels mvvfE mcfb l Ebuombs ycmbd recte cE seb2 tv.Jcmbg c2sv l 3lol tmlEEO

Inter)riMe Java+eanM !ier *m)kementation

Web 82sbuJucEb 3lol)bl2E Wcbu cE l ocslm bmb.b2s c2 seb 3788 .nmsciscbu lutecsbtsnub hbtlnEb secE scbu JuvocgbE tv2tnuub2tpd Etlmlhcmcspd mcybtptmb .l2lab.b2sd l2g ylnms svmbul2tbO Web 82sbuJucEb

3lol)bl2E Wcbu lnsv.lsctlmmp el2gmbE tv2tnuub2tp cEEnbE sels lEEnub .nmscJmb tmcb2sE elob

Ec.nmsl2bvnE lttbEE sv seb El.b vhSbtsO Web 82sbuJucEb 3lol)bl2E Wcbu cE seb scbu rebub Ev.b ob2gvuE c2tmngb yblsnubE sels Juvocgb ylnmsisvmbul2s vJbulscv2 hp .lfc2a cs JvEEchmb sv elob .nmscJmb 82sbuJucEb 3lol)bl2E EbuobuE lolcmlhmb seuvnae seb scbuO WecE .bl2E hltfnJ 82sbuJucEb

3lol)bl2E EbuobuE tl2 hb tv2sltsbg c..bgclsbmp nJv2 seb ylcmnub vy seb Juc.lup 82sbuJucEb

3lol)bl2E EbuobuO

Lvmmbtscobmp seb 82sbuJucEb 3lol)bl2E Ebuobu l2g 82sbuJucEb 3lol)bl2E tv2slc2bu lub

ubEJv2Echmb yvu mvrimbobm EpEsb. EbuoctbE sels lub ubwncubg sv c.Jmb.b2s hnEc2bEE mvact vy l2

82sbuJucEb 3lol )bl2O WebEb EpEsb. EbuoctbE lub

·UbEvnutb Jvvmc2a

·1cEsuchnsbg vhSbts JuvsvtvmE

·Weublg .l2lab.b2s

·Islsb .l2lab.b2s

·kuvtbEE .l2lab.b2s

·xhSbts JbuEcEsb2tb

·Ibtnucsp

·1bJmvpisc.b tv2ycanulscv2

P fbp hb2bycs vy nEc2a seb 82sbuJucEb 3lol)bl2E Ebuobu l2g 82sbuJucEb 3lol)bl2E tv2slc2bu sbte2vmvap cE sels secE sbte2vmvap .lfbE JuvJbu nEb vy l Juvaul..buqE bAJbuscEbO Wels cEd l Juvaul..bu rev EJbtclmc4bE c2 tvgc2a hnEc2bEE mvact cE2qs tv2tbu2bg lhvns tvgc2a EpEsb. EbuoctbEO +cfbrcEbd l Juvaul..bu revEb EJbtclmsp cE EpEsb. EbuoctbE tl2 yvtnE v2 gbobmvJc2a EpEsb. EbuoctbE l2g 2vs hb tv2tbu2bg rcse tvgc2a hnEc2bEE mvactO Inter)riMe *n"ormation 2EMtemM !ier *m)kementation Web 82sbuJucEb ,2yvu.lscv2 IpEsb.E /8,I0 Wcbu cE seb 3788 lutecsbtsnubqE tv22btscocsp sv ubEvnutbE sels lub 2vs Jlus vy 3788O WebEb c2tmngb l olucbsp vy ubEvnutbE Ente lE mbaltp EpEsb.Ed

1)5Id l2g EpEsb.E Juvocgbg hp secug JluscbE sels lub lttbEEchmb sv tv.Jv2b2sE c2 seb 3788

c2yulEsuntsnubO

1bobmvJbuE tl2 nscmc4b vyyisebiEebmy Evysrlub sels cE tv..butclmmp lolcmlhmb c2 seb .lufbsJmltb

hbtlnEb seb 8,I Wcbu JuvocgbE seb tv22btscocsp hbsrbb2 l 3788 lJJmctlscv2 l2g 2v2i3788 EvysrlubO WecE tv22btscocsp cE .lgb JvEEchmb seuvnae seb nEb vy LxU)P l2g 3lol Lv22btsvuEO

JlII +eMt PracticeM

Web vmg rlp vy gbEca2c2a l2g hncmgc2a EpEsb.E ylcmE c2 .bbsc2a 7: evnuEd ; glpE l rbbf c2Esl2s gb.l2g bAJbtsbg hp sevnEl2gE vy tv2tnuub2s nEbuEO Wv .bbs sebEb gb.l2gE 2br tv2tbJsE c2 gbEca2 rbub hvu2O WebEb tv2tbJsE ylmm rcsec2 srv ab2bulm tlsbavucbE9 hbEs JultsctbE l2g Jlssbu2EO )bEs JultsctbE lub Juvob2 gbEca2 l2g Juvaul..c2a sbte2cwnbE nEbg sv hncmg lgol2tbg b2sbuJucEb gcEsuchnscob EpEsb.EO klssbu2E lub uvnsc2bE sels Evmob tv..v2 Juvaul..c2a Juvhmb.E sels vttnu c2 Ente EpEsb.EO

Inter)riMe A))kication 2trategE

,2 vmgb2 glpE gbobmvJbuE nEb sv gbobmvJ Evysrlub yvu seb bAcEsc2a ubwncub.b2sEO x2tb seb ubwncub.b2sE lub tel2abgd sebp nEb sv seuvnae seb Evysrlub l2g gbobmvJ 2br Evysrlub yvu .vgcycbg ubwncub.b2sEO WecE seuvrlrlp JecmvEvJep rvufE rbmm yvu lJJmctlscv2E sels EbuoctbE l E.lmm auvnJ vy nEbuEO 6vrbobud secE JecmvEvJep mvEbE csE btv2v.ctlm l2g Jultsctlm Eb2Eb reb2 lJJmcbg sv l2 b2sbuJucEb lJJmctlscv2O P2 b2sbuJucEb lJJmctlscv2 cE l .cEEcv2itucsctlm EpEsb. revEb tv2sc2nlm EnttbEEynm vJbulscv2 gbsbu.c2bE seb tvuJvulscv2qE EnttbEEO WecE .bl2E sels l2 b2sbuJucEb lJJmctlscv2 cE tv.JmbA c2

2lsnub l2g .bbsE seb 2bbgE vy l gcobuEbd tv2Esl2smp tel2ac2a gcocEcv2 vy l tvuJvulscv2O

P2 b2sbuJucEb lJJmctlscv2 slfbE .vub sc.b sv gbobmvJO x2tb cs cE gbobmvJbg l2g vJbulscv2lmd nEbuE .lp lEf seb tel2abE lysbu ybr glpEO ,2Esblg vy tel2ac2a seb c.Jmb.b2slscv2d seb tel2abg ubwncub.b2sE tl2 hb c.Jmb.b2sbg lE l EbJlulsb .vgnmbO Tb tl2 tlmm secE .vgnmb lE evvfO Iv secE evvf tl2 hb tlmmbg yuv. lJJmctlscv2O WecE .c2c.c4bE seb tel2ab c2 lmublgp gbobmvJbg lJJmctlscv2O )ns cs elE Ev.b gcElgol2slabEO Wels cE cy seb 2n.hbu vy evvfE lub c2tublEc2a pblu hp pblud cs cE gcyyctnms sv .lc2slc2 seb lJJmctlscv2O Wv vobutv.b sebEb gcElgol2slabEd 2br lJJuvlte elE hbb2 lglJsbgO

A se# 2trategE

,2 seb tvuJvulsb rvumgd .l2lab.b2s EbsE seb .lc2 vhSbtscobEO WebEb vhSbtscobE lub gcocgbg c2sv Enh vhSbtscobEO )nEc2bEE n2csE lub yvu.bg sv .bbs sebEb Enh vhSbtscobEO Pmm b2sbuJucEb lJJmctlscv2E .nEs c2sbuyltb rcse blte vsebu sv lEEnub sels c2yvu.lscv2 tl2 hb Eelubg l.v2aEs hnEc2bEE n2csEO Wels cEd lmm lJJmctlscv2E l2g EpEsb.E elob sv rvuf svabsebu l2g elob seb ymbAchcmcsp hncms c2sv seb lutecsbtsnub Ev sels l2 b2sbuJucEb lJJmctlscv2 cE c2tub.b2slmmp tel2abg sv .bbs 2br hnEc2bEE gb.l2gE rcsevns eloc2a sv hb ubtv2EsuntsbgO WecE bmc.c2lsbE seb mla sels vttnuE rcse seb seuvrlrlp JecmvEvJepO (v mv2abu rcmm hnEc2bEE n2csE 2bbg sv Enyybu seb Jlc2 sels vttnuE reb2 tel2abE sv seb lJJmctlscv2 lub 2vs .lgb c2 l sc.bmp .l22bu hbtlnEb seb lJJmctlscv2 cE 2vs .lc2slc2lhmbO Web 2br tvuJvulsb c2yvu.lscv2 sbte2vmvap Esulsbap cE sv b.Jmvp l2 lutecsbtsnub rcsec2 recte b2sbuJucEb lJJmctlscv2E tl2 tvbAcEs l2g tl2 hb c2tub.b2slmmp gbobmvJbg l2g c.Jmb.b2sbgO !Se Inter)riMe A))kication P2p lJJmctlscv2 nEbg hp .vub sel2 v2b JbuEv2 sv tv2gnts hnEc2bEE tvnmg hb tv2Ecgbubg l2 b2sbuJucEb lJJmctlscv2O Mvu seb JnuJvEb vy 3788d tv2Ecgbu l2 b2sbuJucEb lJJmctlscv2 sv hb v2b sels ·,E tv2tnuub2smp nEbg hp .vub sel2 l el2gynm vy nEbuE ·,EbE gcEsuchnscob ubEvnutbE Ente lE 1)5I sels lub Eelubg rcse vsebu lJJmctlscv2E ·1bmbalsbE ubEJv2Echcmcsp sv Jbuyvu. yn2tscv2lmcsp l.v2a gcEsuchnscob vhSbtsE ·,EbE rbh EbuoctbE lutecsbtsnub l2g 3788 sbte2vmvap sv mc2f svabsebu tv.Jv2b2sE LvuJvulsb nEbuE eloc2a ecae bAJbtslscv2E yuv. l2 b2sbuJucEb lJJmctlscv2O Webp rl2s seb b2sbuJucEb lJJmctlscv2 sv ·)b lolcmlhmb 7: evnuE l glpd ; glpE l rbbf rcsevns l2p gvr2sc.b ·6lob l2 lttbJslhmb ubEJv2Eb sc.b bob2 c2 seb yltb vy c2tublEc2a nElab ·6lob seb ymbAchcmcsp sv hb .vgcycbg wnctfmp rcsevns ubwncuc2a l ubgbEca2 vy seb lJJmctlscv2

·)b ob2gvu c2gbJb2gb2s

·)b lhmb sv c2sbults rcse bAcEsc2a EpEsb.E

·,scmc4b bAcEsc2a EpEsb. tv.Jv2b2sE

'kientM

3788 cE vual2c4bg c2sv scbuEd seb ycuEs vy recte cE seb Lmcb2s WcbuO Ivysrlub rvufc2a v2 seb Lmcb2s

Wcbu elE Ebobulm yn2tscv2Ed .l2p vy recte lub blEcmp gbobmvJbg hp Juvaul..buEO 6vrbobud sebub lub l ybr yn2tscv2E sels JvEb l telmmb2ab sv Juvaul..buEO WebEb yn2tscv2E lub sv ·kubEb2s seb lJJmctlscv2qE nEbu c2sbuyltb sv seb JbuEv2 rev cE nEc2a seb lJJmctlscv2 ·Lvmmbts l2g olmcglsb c2yvu.lscv2 yuv. seb JbuEv2 nEc2a seb lJJmctlscv2

·Lv2suvm seb tmcb2sqE lttbEE sv ubEvnutbE

·kubob2s tmcb2sE yuv. Eb2gc2a gnJmctlsb ubwnbEsE 'kient PreMentation P2 b2sbuJucEb lJJmctlscv2 nEbE l sec2 tmcb2s .vgbm rebub 2blump lmm yn2tscv2lmcsp lEEvtclsbg rcse seb lJJmctlscv2 cE tv2slc2bg v2 seb EbuobuiEcgb ulsebu sel2 rcse seb tmcb2sO Wec2 tmcb2sE el2gmb seb nEbu c2sbuyltb sels JubEb2sE c2yvu.lscv2 sv seb nEbu l2g tlJsnubE c2Jns yuv. seb nEbuO Webub lub srv EsulsbacbE yvu hncmgc2a JubEb2slscv2 yn2tscv2lmcsp c2sv l tmcb2sO WebEb lub sv nEb l huvrEbuihlEbg nEbu c2sbuyltb vu sv tublsb l ucte tmcb2s rebub l aulJectlm nEbu c2sbuyltb cE Juvaul..bg c2sv seb tmcb2sO 8lte elE csE lgol2slabE l2g gcElgol2slabEO

Pgol2slabE vy huvrEbu hlEbg Esulsbap9

7O Wulc2c2a cE 2vs ubwncubg yvu l JbuEv2 sv nEb huvrEbu hlEbg lJJmctlscv2O

1cElgol2slabE vy huvrEbu hlEbg Esulsbap9

7O Web JubEb2slscv2 cE mc.csbg sv c2sbultscv2E sels tl2 hb c.Jmb.b2sbg nEc2a l .lufnJ ml2anlabO =O ,s lttbEE seb Ebuobu blte sc.b l2 bob2s cE ab2bulsbgd recte gbtublEbE seb Jbuyvu.l2tbO :O P huvrEbuihlEbg Esulsbap spJctlmmp nEbE seb 6WWk JuvsvtvmO 6WWk cE l EslsbmbEE Juvsvtvmd Ev seb gbobmvJbu .nEs elob l Esulsbap yvu .lc2slc2c2a EbEEcv2 Eslsb v2 seb EbuobuO Web uctebu tmcb2s Esulsbap acobE l gbobmvJbu svslm tv2suvm vobu bmb.b2sE vy seb JubEb2slscv2O Wels cEd l gbobmvJbu tl2 nEb T>I,T>?/rels pvn Ebb cE rels pvn abs0 sv tublsb seb JubEb2slscv2 l2g cE2qs mc.csbg sv v2mp bob2sE sels lub sulJJbg hp seb huvrEbuO ,2 lggcscv2d l uctebu tmcb2s lttbEEbE l Ebuobu v2mp lE 2bbgbg l2g 2vs c2 ubEJv2Eb sv 2blump bobup bob2s sels vttnuE c2 seb JubEb2slscv2O WecE .caes ubEnms c2 ybrbu Ebuobu c2sbultscv2E l2g c2tublEb ubEJv2Eb sc.bO ProtclsExtexrcp cDeveloping a Client for Enterprise Application: Web hbEs Jultsctb reb2 gbobmvJc2a l tmcb2s yvu l2 b2sbuJucEb lJJmctlscv2 cE sv nEb seb Esulsbap sels cE .vEs lJJuvJuclsb yvu blte lEJbts vy seb JubEb2slscv2O Wels cEd hvse EsulsbacbE tl2 hb nEbg yvu JcbtbE vy seb

JubEb2slscv2 vy l2 b2sbuJucEb lJJmctlscv2O ,Eb seb huvrEbuihlEbg Esulsbap yvu Ec.Jmb

JubEb2slscv2E l2g seb uctebu tmcb2s Esulsbap reb2bobu .vub tv.JmbA JubEb2slscv2E lub 2btbEElup sels tl22vs hb lgbwnlsbmp el2gmbg gcubtsmp hp l huvrEbuO 'kient *n)wt ,akidation ,2yvu.lscv2 sels cE b2sbubg c2sv l tmcb2s hp l nEbu Eevnmg hb olmcglsbgd gbJb2gc2a v2 seb 2lsnub vy seb c2yvu.lscv2O 1bslcmE vy seb olmcglscv2 JuvtbEE lub lJJmctlscv2 gbJb2gb2s@ evrbobud seb gbobmvJbu elE srv JmltbE rebub olmcglscv2 tl2 vttnu9 rcse seb tmcb2s vu v2 seb Ebuobu EcgbO P gbobmvJbu tl2 c.Jmb.b2s seubb fc2gE vy olmcglscv2 EsulsbacbE9 Ep2sltsctd mbActlmd l2g Eb.l2sctO Ip2sltsct olmcglscv2 gbsbu.c2bE cy c2yvu.lscv2 sels tv2EcEsE vy Ebobulm ubmlsbg olmnbE cE rbmm yvu.bgd Ente lE sc.b sels cE tv.JvEbg vy evnuE l2g .c2nsbEO +bActlm olmcglscv2 mvvfE ls l Ec2amb olmnb sv lEEnub sels seb spJb vy olmnb tvuubEJv2gE sv seb spJb vy glsl sels cE bAJbtsbg hp seb lJJmctlscv2O Mvu bAl.Jmbd l2 evnu olmnb .nEs hb l2 c2sbabu sv JlEE l mbActlm olmcglscv2O Ib.l2sct olmcglscv2 bAl.c2bE seb .bl2c2a vy seb c2yvu.lscv2 sv gbsbu.c2b cy seb c2yvu.lscv2 cE mcfbmp sv hb tvuubtsO Ib.l2sct olmcglscv2 gbsbu.c2bE cy seb olmnb vy seb evnu cE mbEE sel2 7: l2g aublsbu sel2 vu bwnlm sv AO Webub lub seubb yn2gl.b2slm yltsvuE sels .nEs hb tv2Ecgbubg reb2 gbEca2c2a olmcglscv2 JuvtbgnubE yvu l2 b2sbuJucEb lJJmctlscv2O WebEb lub sv lovcg gnJmctlsc2a seb olmcglscv2 Juvtbgnub rcsec2 seb lJJmctlscv2d Juvocgb seb nEbu rcse c..bgclsb ubEnmsE yuv. seb olmcglscv2 JuvtbEEd l2g .c2c.c4b seb byybts seb olmcglscv2 JuvtbEE elE v2 seb EbuobuO ,y olmcglscv2 Juvtbgnub cE rucssb2 ls tmcb2s Ecgbd seb2 seb El.b tvgb rcmm ubJbls ltuvEE lmm tmcb2s .ltec2bEO ,y sebub cE l2p .vgcyctlscv2 c2 olmcglscv2 Juvtbgnubd cs 2bbg sv hb .vgcycbg c2 lmm tmcb2s .ltec2bEO WecE tl2 hb c.Jmb.b2sbg hp c.Jmb.b2sc2a olmcglscv2 Juvtbgnub ls Ebuobu EcgbO ,EbuE ubwncub 2blump c2Esl2sl2bvnE ybbghltf lE sv seb olmcgcsp vy seb glsl reb2bobu sebp b2sbu c2yvu.lscv2 c2sv l tmcb2sO Mbbghltf Eevnmg c2gctlsb sels seb glsl cE olmcg vu c2olmcgO P2p gbmlp Juvocgc2a ybbghltf sv seb nEbu tl2 mblg sv l Jvvu nEbu bAJbucb2tb rcse seb lJJmctlscv2O P tv..v2 Evnutb vy gbmlp cE reb2 l gbobmvJbu nEbE l EbuobuiEcgb olmcglscv2 JuvtbEEO WecE cE hbtlnEb l tv2ymcts .caes lucEb cy .nmscJmb lJJmctlscv2E tv2tnuub2smp tlmm seb vhSbts sels olmcglsbE glslO P ubwnbEs sv olmcglsb glsl .caes hb wnbnbg n2scm l2vsebu lJJmctlscv2qE glsl cE olmcglsbgO +eMt Practice Developing a Validation Strategy: Web hbEs Jultsctb reb2 gbobmvJc2a l olmcglscv2 Esulsbap cE sv Jbuyvu. lE .nte /cy 2vs lmm0 vy seb olmcglscv2 v2 seb Ebuobu EcgbO Povcg olmcglsc2a v2 seb tmcb2s Ecgb hbtlnEb tmcb2siEcgb olmcglscv2 uvnsc2bE yubwnb2smp .nEs hb nJglsbg reb2 l 2br obuEcv2 vy seb huvrEbu cE ubmblEbgO +eMt Practice Reducing the Opportunity for User Error: P2vsebu hbEs Jultsctb cE sv ubgntb seb vJJvusn2csp yvu l nEbu sv b2sbu c2tvuubts c2yvu.lscv2 hp nEc2a JubEb2slscv2 bmb.b2sE sels mc.cs tevctbEO WebEb bmb.b2sE c2tmngb ulgcv hnssv2Ed tebtf hvAbEd mcEs hvAbEd l2g guvJigvr2 tv.hv hvAbEO ,2yvu.lscv2 sels cE tvmmbtsbg nEc2a sevEb bmb.b2sE gvbE2qs elob sv hb olmcglsbg hbtlnEb seb lJJmctlscv2 JubEb2sE seb nEbu rcse v2mp olmcg tevctbEO Webub cE2qs l2p vJJvusn2csp yvu seb nEbu sv b2sbu c2olmcg glslO 'kient 'ontrok ,2 bobup b2sbuJucEb lJJmctlscv2d tmcb2sE lub ubEsuctsbg sv ubEvnutbE hlEbg v2 seb tmcb2sqE 2bbgEO Web EtvJb vy ubEvnutbE l tmcb2s tl2 lttbEE cE tv..v2mp ubybuubg sv lE l tmcb2s ocbrO P tmcb2s ocbr .caes tv2EcEs vy EJbtcyct glslhlEbEd slhmbEd vu uvrE l2g tvmn.2E vy slhmbEO Webub lub srv rlpE yvu l tmcb2s ocbr sv hb gbyc2bg9 seuvnae b.hbggc2a mvact sv gbyc2b seb ocbr c2sv seb lJJmctlscv2d vu hp nEc2a l tv2suvmmbu tv.Jv2b2s sels cE f2vr2 lE l ubEvnutb anlugO Web ubEvnutb anlug cE l tv.Jv2b2s sels ubEcgbE vnsEcgb vy seb lJJmctlscv2 sels ubtbcobE ubwnbEsE yvu ubEvnutbE yuv. lmm lJJmctlscv2EO P ubwnbEs yvu l ubEvnutb tv2slc2E l tmcb2s ,1 sels cE tv.Jlubg sv seb tmcb2sqE tv2ycanulscv2O PttbEE cE bcsebu aul2sbg vu ubSbtsbg hlEbg nJv2 lttbEE ucaesE rcsec2 seb tmcb2sqE tv2ycanulscv2O P2vsebu .bsevg sels cE nEbynm reb2bobu v2mp glslhlEb lttbEE cE ubwncubg cE sv auvnJ svabsebu nEbuE rev elob Ec.cmlu 2bbgE c2sv l auvnJ Juvycmbd seb2 lEEca2 Jbu.cEEcv2E sv seb auvnJO ,2 secE rlpd seb 1)5I .l2labE Ebtnucsp gcubtsmp rcsevns pvn eloc2a sv rucsb pvnu vr2 Ebtnucsp uvnsc2bEO +eMt Practice Using Security Measures: Web hbEs Jultsctb cE sv nEb Ebtnucsp .blEnubE sels bAcEs c2 1)5I vu 2bsrvufEd rebub yblEchmbO 6vrbobud cy secE cE2qs seb hbEs lmsbu2lscobd nEb l ubEvnutb anlug ulsebu sel2 b.hbg seb gbyc2cscv2 vy l tmcb2s ocbr c2sv seb lJJmctlscv2d n2mbEE v2mp v2b tmcb2s nEbE seb ubEvnutbO WecE cE hbtlnEb .nmscJmb tmcb2sE l2g lJJmctlscv2E tl2 nEb seb ubEvnutb anlug sv lttbEE Eelubg ubEvnutbEO ,2 secE rlpd seb mvact sv gbyc2b seb tmcb2s ocbr cE2qs gnJmctlsbg c2 .nmscJmb lJJmctlscv2EO +eMt Practice Working with a Resource that Becomes Sharable: Web hbEs Jultsctb sv nEb reb2 l ubEvnutb hbtv.bE Eelulhmb cE sv ub.vob seb b.hbggbg mvact sels gbyc2bE seb tmcb2s ocbr yuv. seb lJJmctlscv2 l2g Jmltb seb mvact c2sv l ubEvnutb anlugO ,2 secE rlpd seb mvact cE JubEbuobg recmb Escmm Juvocgc2a ymbAchcmcsp sv seb lJJmctlscv2O +eMt Practice Using Resource Guards : Web hbEs Jultsctb cE sv nEb l2 82sbuJucEb 3lol)bl2 lE seb ubEvnutb anlug l2g nEb Ebtnucsp .btel2cE.E sels lub lmublgp c2 seb rbh tv2slc2bu l2g ubEvnutbd ulsebu sel2 hncmg seb mvact yvu seb ubEvnutb anlug yuv. EtulsteO x2tb seb tmcb2s ocbr cE gbyc2bgd seb gbobmvJbu .nEs gbsbu.c2b l Esulsbap yvu c.Jmb.b2sc2a seb tmcb2s ocbrO Webub lub srv tv..v2mp nEbg EsulsbacbE9 seb lmmivui2vsec2a Esulsbap vu seb Ebmbtscob EsulsbapO Web lmmivui2vsec2a Esulsbap ubwncubE seb gbobmvJbu sv rucsb mvact sels b2lhmbE vu Jubob2sE l tmcb2s yuv. lttbEEc2a seb tv.Jmbsb ubEvnutbEO Ic.Jmp Elcgd seb tmcb2s tl2 bcsebu lttbEE lmm yblsnubE vy l ubEvnutb vu cE Juvechcsbg yuv. lttbEEc2a seb ubEvnutb b2scubmpO ,2 tv2sulEsd seb Ebmbtscob Esulsbap aul2sE l tmcb2s lttbEE sv seb ubEvnutbd hns ubEsuctsE lttbEE sv Ebmbtsbg yblsnubE vy seb ubEvnutb hlEbg v2 seb tmcb2sqE 2bbgEO Mvu bAl.Jmbd l tmcb2s .lp elob ublg lttbEE sv seb slhmb sels tv2slc2E vugbuEd hns gvbE2qs elob ucaesE sv c2Ebus l 2br vugbu vu .vgcyp l2 bAcEsc2a vugbuO +eMt Practice Using the Selective Strategy : Web hbEs Jultsctb cE sv nEb seb Ebmbtscob Esulsbap hbtlnEb secE Esulsbap JuvocgbE seb ymbAchcmcsp sv ltscolsb vu gbltscolsb yblsnubE vy l ubEvnutb lE ubwncubg hp blte tmcb2sO Web lmmivui2vsec2a Esulsbap gvbE2qs Juvocgb secE ymbAchcmcspO WecE .bl2E seb gbobmvJbu rcmm 2bbg sv ubJmltb seb lmmivui2vsec2a Esulsbap rcse seb Ebmbtscob Esulsbap lysbu seb lJJmctlscv2 cE c2 Juvgntscv2d Eevnmg l tmcb2sqE 2bbgE tel2abO ,2 lggcscv2d seb Ebmbtscob Esulsbap tl2 lmEv hb nEbg sv Juvocgb seb El.b yblsnubE lE Juvocgbg hp seb lmmivui2vsec2a EsulsbapO Wels cEd seb gbobmvJbu tl2 aul2s l tmcb2s svslm lttbEE sv l ubEvnutb vu Juvechcs l tmcb2s yuv. lttbEEc2a seb ubEvnutbO uw)kicate 'kient pe-weMtM A common problem with thin client applications is for the client to inadvertently submit a duplicate request for service, such as submitting a duplicate order. There are many ways a client can generate a duplicate request. A browser is the user interface used in a thin client application. However, the browser contains elements that can lead to a duplicate request being sent. Namely, the Back and Stop buttons. The Back button causes the browser to recall the previously displayed web page from the web server. The Stop button halts the implementation of a request. This means the browser processes some, but not all, of the requests. Normally, the selection of these buttons has minimal consequence to the client because the browser either displays an unwanted page (previous page) or displays a partial page. In both cases, the user can easily correct the situation. However, a problem might occur if the client is sending a web form such as an order form to the Web Tier. Let's say that the user submits the order form. The application generates a confirmation web page that the browser displays. The user then inadvertently selects thequotesdbs_dbs11.pdfusesText_17

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