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You are here: Home Cong nghe Phn bit JDK v JRE
By: trongnguyen on Apr. 25, 2011 with No Comment
Trong mt s bi vit lin quan ti Oracle trc ti tng gii thiu ti cc
bn v cng c JDK, JRE, trong bi vit ngy hm nay ti s gii thiu thm v 2
khi nim ny l s khc nhau gia chng.
JDK Java Development Kit Java Development Kit l mt b bao gm cc
cng c cn thit trong qu trnh pht trin cc ng dng Java + JRE. Cc cng c
l: javac.exe, java.exe, applet viewer, vai tr ca tng cng c nh
sau:
javac.exe gip bin dch cc file ngun vit bng ngn ng Java (*.java)
thnh m my (byte code) java.exe gi ti JRE, ti np cc file m my c bin
dch v gi ti method main thc thi cc m . Applet Viewer chy cc ng dng
vit bng applet.
Nh vy JDK cung cp ti bn b cng c trn gi pht trin cc ng dng Java
bao gm: pht trin (kt qu l cc file .java) > bin dch (kt qu l cc
file .class) > thc thi ng dng. download JDK bn c th truy cp vo
ng link sau, bn chn download phin bn JDK mi nht hin ti l 1.6.0_25
bng cch nhn chn file jdk-6u25-windows-i586.exe.
JRE Java Runtime Environment JRE l mt ng dng nn gip thc thi cc
file m my c bin dch t file ngun *.java. Cc thnh phn ca JRE ch bao
gm cc gi Java v th vin thc thi ng dng (runtime libraries) nn JRE
khng c kh nng bin dch file Java thnh m my ch c kh nng thc thi cc
file byte code sau khi c SDK bin dch.
JRE cng l mt yu cu bt buc bn ci t bt k mt ng dng Java no trn my,
download JRE (bn mi nht hin ti l 1.6.0_24) bn c th truy cp vo ng
link sau.
(5,310 viewed)
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PHN BIT JDK V JRE
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