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What is JAVA 2? JDK 6? JRE?

ahmad mayahi

Joined: May 10, 2009
Posts: 19
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

Joined: Mar 30, 2007
Posts: 46
you know how to search ....dont you....

and with versions check this wiki

Ulf Dittmer

Joined: Mar 22, 2005
Posts: 42955
See #18 in the
I agree. Here's the link:
subject: What is JAVA 2? JDK 6? JRE?