Java vs JavaScript
Java thiab JavaScript yog hom lus programming. Java yog ib hom lus hais txog qhov programming thaum JavaScript yog ntau hom lus sau. Ob leeg tuaj yeem siv los ua kom cov nplooj ntawv web muaj kev sib tham ntau dua. Txawm li cas los xij, Java kuj tseem siv los tsim cov ntawv thov sab server thiab kev ua haujlwm ib leeg.
Java
Java yog hom lus taw qhia cov lus programming. Thaum ntxov xyoo 1990, Sun Microsystems tau tsim cov lus Java. Thaum pib, nws tau tsim los ua cov kev pab cuam me me rau lub web browser hu ua applets. Tab sis tom qab ntawd, Java tau siv los tsim cov ntawv thov raws li e-commerce.
Muaj tsib lub ntsiab lus ntawm Java:
• Muab kev yooj yim dua los tsim cov ntawv thov software vim yog cov khoom taw qhia.
• Yooj yim siv vim nws sib txuas cov khoom zoo tshaj plaws ntawm lwm yam lus programming.
• Tso cai code sau hauv Java khiav ntawm cov platform sib txawv lossis Java code yog ywj pheej ntawm platform.
• Cov lej los ntawm cov chaw taws teeb tuaj yeem ua tiav ruaj ntseg.
• Ua-nyob rau hauv kev them nyiaj yug rau computer networks.
Java kuj tseem txhawb nqa kev tswj hwm lub cim xeeb uas tso cai rau cov neeg tsim khoom tshem tawm lub sijhawm siv txoj kev hu ua phau ntawv tswj kev nco. Programmers tau yooj yim ua qhov no los ntawm kev siv cov khib nyiab tsis siv neeg. Tab sis raws li qee tus neeg, Java qeeb thiab siv lub cim xeeb ntau dua li lwm yam lus programming xws li C ++.
JavaScript
JavaScript kuj yog ib hom lus programming uas yog siv los ua kom cov nplooj ntawv web muaj zog thiab sib tham sib. Kev rub tawm tas li los ntawm tus neeg rau zaub mov tsis tas yuav tsum muaj nyob rau hauv rooj plaub ntawm JavaScript raws li nws khiav ntawm tus neeg siv lub computer. JavaScript txawv ntawm Java programming lus.
Ntau lub vev xaib niaj hnub niaj hnub no muaj JavaScript built-in. Txawm li cas los xij, JavaScript raws li lub vev xaib tuaj yeem khiav tsuas yog tias JavaScript tau qhib rau ntawm lub vev xaib browser thiab browser txhawb nqa nws. JavaScript tau qhib rau hauv feem ntau browsers los ntawm lub neej ntawd.
Tsis muaj qhov tshwj xeeb yuav tsum tau ua txhawm rau sau cov lej hauv JavaScript vim nws yog hom lus txhais. Koj tuaj yeem siv cov ntawv nyeem xws li Notepad txhawm rau sau JavaScript code. Koj tseem tuaj yeem siv lwm cov ntawv nyeem uas muaj xim sib txawv cov lej ua rau nws yooj yim dua los kuaj xyuas qhov yuam kev.
JavaScript txawv ntawm HTML vim tias JavaScript yog siv los tsim cov nplooj ntawv web dynamic dua thaum HTML yog cov lus cim uas siv los tsim cov ntsiab lus zoo li qub ntawm nplooj ntawv web.
Koj tuaj yeem ntxig JavaScript code rau hauv cov ntaub ntawv HTML los ntawm kev siv lub cim npe. Tab sis yog tias koj xav siv tsab ntawv nyob rau ntau nplooj ntawv ntawm lub vev xaib ces koj tuaj yeem khaws cov ntawv sau rau hauv cov ntaub ntawv sib txawv nrog.js extension.
Qhov txawv ntawm Java thiab JavaScript
• Java yog hom lus taw qhia cov lus programming whereas JavaScript yog ntau hom lus sau.
• JavaScript yog siv los ua kom cov nplooj ntawv web sib tham ntau dua. Txawm li cas los xij, Java tuaj yeem siv tsis tau tsuas yog los ua cov nplooj ntawv sib tham sib tham tab sis kuj tseem siv tau los tsim cov ntawv thov sab server thiab kev ua haujlwm ib leeg.
• Java siv lub tswv yim ntawm cov chav kawm thiab cov khoom uas ua rau rov siv cov cai yooj yim dua tab sis tsis muaj qhov zoo li no hauv JavaScript.
• Java nthuav tawm cov khoom zoo li qub txeeg qub teg, cov ntaub ntawv encapsulation thiab polymorphism whereas JavaScript tsis.
