Then if you have absolutely no experience developing java application or with ant/maven ; I feel the best way to get you started would be to look at an existing community project close enough to what you're trying to do, copy their exact folder structure and build files. If you know your way about java development a bit, I'm sure you'll be able to setup an environment just fine by looking into how Alfresco is built and with the help of the ;ultitude of tutorials that you can find online.