Kodi Java Ndiyofunika Kuphunzira?
Pambuyo pa OpenOffice, Vuze, Woopra, kapena ma applets omwe amagwiritsidwa ntchito m'mabuku ena, amapezeka kwambiri pa mafoni a m'manja, TV, GPS, ATM, ndondomeko zamalonda ndi masamba ambiri amene timasambira tsiku lililonse akuthamanga pa Java.
Chithunzi chotsatira chikuwonetsa momwe zipangizo zamakono za Java zimakhalira ndi chida chokhazikika kuchokera ku 2006 mpaka 2011 poyerekeza ndi C # .net, php ndi Ruby, mwinamwake kutengedwa chifukwa cha ntchito zopezeka.
Pankhani ya chilengedwe geospatial, C ++ ndi Java ndi maiko awiri aakulu amene anamanga Open ntchito Gwero; Tebulo izi mwachidule chinachake, mutu wa positi ndimaganizira kwambiri kuwonjezera pa ntchito Java koma pa Koyamba (omwe si), kuchokera ku mbali ya Java kuti C ++ ndi kuposa mu ubale 15 kuti 10.
Mapulogalamu a GIS mu C ++ |
Zotsatira za GIS ku Java |
Pa digiri ya Desktop
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Pa mlingo wa seva
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Kumalo osungirako mabuku
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Pazomwe zili pamwambazi, osachepera 5 mwa omwe amapangidwa ku Java adatchulidwa ngati mapulogalamu a OSGeo maziko, ena mu makulitsidwe, pofunafuna zowonjezera ndi kuyanjanitsa.
Zingakhale zosangalatsa kukhala pagome lazambiri zamapulogalamu kuti mukambirane chifukwa chake amakonda kapena kudana ndi Java, mwina zingakambitsiridwe ngati a Pointers apangitsa kuti ntchitoyi ikhale yosavuta kapena ayi, ngati kuchuluka kwa ma multithreading kungakhale ndi mwayi wopitilira zilankhulo zina ngati kulibe makina, ngati chitetezo chili chofananira ; koma pa chinthu chimodzi onse agwirizana:
Zowonjezera, popeza mapulogalamuwa amatha kugwira ntchito pa Windows, Linux, Solaris ndi Mac (kunyalanyaza kuuma kwaposachedwa kwa Steve Jobs). Izi zimapangitsa kuti zikhale zokopa pazomwe zikuyenda padziko lonse lapansi, pomwe ogwiritsa ntchito adzagwiritsa ntchito makina ndi ma asakatuli osiyanasiyana, kuthetsa pafupifupi chilichonse ndi Makina otchuka a Virtual omwe kupatula kugwira ntchito zowerengeka, amathetsa zovuta ndikuwonetsetsa pakati pa kasitomala ndi seva.
Komanso mfundo yakuti Open Source ndi mbali kuwunika, ngakhale Oracle anapeza DZUWA (Java mapulogalamu), ndipo ena kukayikira zimene zidzachitike mothamanga yaitali ndi MySQL (GPL chilolezo), pafupifupi munthu wina mafunso tsogolo wa chinenero cha Java.
Mwinanso zomwe Green Teen idayamba ngati projekiti yolephera kuyendetsa pawayilesi yakanema ndipo VHS silingafanane ndi zomwe Java yakwanitsa kuyika, ngakhale zili ndi zolinga. Mpaka pano, pali mapulogalamu atatu a Java:
J2SE (Standard Edition), yomwe ndi yomwe imagwiritsidwa ntchito popanga ntchito yogawa ndi ma applests.
J2EE (Enterprise Edition), kawirikawiri kwa zipangizo zamalonda zamagetsi, ntchito zothandizira kutali ndi zamalonda zamalonda.
J2ME (Micro Edition), yomwe imagwiritsa ntchito mafoni a m'manja, GPS ndi makanema a TV.
Learn21 y Globalmentoring iwo ndi zitsanzo zamakono komwe mungaphunzire Java.
Kotero, kubwerera ku funso loyamba, ngati Java ndi yofunika kuphunzira ...