Hi John,
We're glad you found your way here. Folks around here are happy to help, but your question, as stated, makes it kind of hard to know where to begin. We have no way to know if you need help installing the JDK, compiling a program for the first time, correcting a typo, or what.
Thing work best if you ask specific, directed, and focused questions, as opposed to broadly stated "i need help".
Can you tell us what you've done so far? if you have some code written, post it here!!! We have a FAQ on
How To Ask Questions On JavaRanch which you may want to skim. It is full of advice on what we think works best around here.
Welcome!!!