Best Java Forum ?

What do you mean by share? The JDC [ http://forums.sun.com/ ] has many knowledgeable people on it, and questions are normally answered quickly. But they have no time for fools, so make sure you phrase your question well, search first and used little SMS speak. JavaRanch [ http://www.javaranch.com/ ] is quite liked by many a newbie, personally I find the forced niceness a little, well, forced. You have a fair few other forums such as DevShead but often most of the posters are also on the JDC or J.R. Whichever you choose do read SSCCE [ http://SSCCE.org ] and How To Ask Questions The Smart Way (ESR) [ http://www.catb.org/~esr/faqs/smart-questions.html ] first.

The best java forum for me is definitely JavaRanch. It is very useful for beginners and a lot of your queries and doubts will be cleared almost in a day. I definitely recommend it to all java enthusiasts.