But I downloaded xcode 3.0, opened new file, went to c file and wrote some code that I'm 100% sure is correct but how do I make my project run? BTW I've never programmed before on mac but I have in the c sharp program for windows. Umm... I tried to go to the run option but thats not available. Also the template given looks like this /* * untitled.h * * * Created by Gurpreet Bhachu on 01/05/08. * Copyright 2008 __MyCompanyName__. All rights reserved. * */ So do i start writing code here?