I know some Java, but I don't use it enough to keep myself well-versed in it (always programming in VB, VB.NET). Whenever I want to know something about Java I go to DevX (http://www.devx.com/).
Try this page out: Need a hand with that first cup of Java? (http://portals.devx.com/dreamwarrior/Article/6617)
As much as I hate to say it, JavaScript and Java are quite different. I struggled with Java for a while, then it was though my eyes were opened and I suddenly understood. I programmed with C++ in college, and that helped.
Good luck!