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What is JAVA 2? JDK 6? JRE?

 
ahmad mayahi
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Hello
I'm so confused about the versions numbers of JAVA.
I know the JAVA is a programming language and has many technologies like J2SE, J2ME, J2EE
But what is JAVA version (2)? Why we said "J2" what is exactly?
When i browser the sun Inc, portal i can't find (JAVA2)! there's JDK 6 and JRE 6 too!!!
I don't know whats JAVA 2 and JDK 6 ? and JRE?
anyone can explain them?
 
jittu goud
Ranch Hand
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you know how to search ....dont you....
http://www.google.co.uk/search?hl=en&q=jdk+vs+jre&btnG=Search&meta=

and with versions check this wiki http://en.wikipedia.org/wiki/Java_version_history

 
Ulf Dittmer
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See #18 in the http://faq.javaranch.com/java/JavaBeginnersFaq
 
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