IntelliJ IDEA Minecraft 1.6.2

Anyone know how I can setup IntelliJ IDEA for minecraft and continue my coding, I get the code to work but I would also like to be able to run the client to see if there are anye errors or something like that.

Here is a screenshot, do anyone know what to enter where I have typed HERE!!!! ?

If you know, please tell me, I really want to continue to code with this program...