I need help

Yes, we can help.

Start here: http://java.sun.com/

Search also http://www.amazon.com/ for Java books and
http://www.google.com/ for Java tutorials.

A good keyword to use besides "Java" is "tutorial".

For mobile phone Java stuff, search for "J2ME" and "MIDP" in specific.

If you happen to have a Nokia phone, look for Java developer stuff on http://forum.nokia.com/

Another keyword to search for: SDK (Software Development Kit).

In essence, search for Java/J2ME/MIDP SDKs, tutorials and books.