Additionally, Java 2 includes Swing(tm) components in its API. That may be the major difference between Java 1 and 2.

Don't mistake Java 2 for Java 2 EE. J2EE is an Application Server that runs under Java 2.

Anyway, if you're really interested in Java, I think this site would not be the right place for it, you can find more at java.sun.com.