I want to create a
RPG GAME in java but i dont know how to do it i know how to mange it but the problem is what SOFTWARE

should i use i want my rpg game to have a whos online system and a chat sytem were people can chat with each other and stuff
WHAT SOFTWARE SOULD I USE IN ORDER TO DO THESE 
If you haven't programmed in java before or don't have any programming experience i would ready a good book on java. Also i would start with something easier like Pong or a text adventure. For software i would reccommend JDK 6u2, JavaDocs6 and
Jcreator 4 Pro