In Xcode

Assuming that you have installed the developer tools, you will find Xcode in /Developer/Applications/. Drag the application to the dock at the bottom of your screen; you will be using it a lot. Launch Xcode.

As mentioned earlier, Xcode will keep track of all the resources that go into your application. All these resources will be kept in a directory called the project directory. The first step in developing a new application is to create a new project directory with the default skeleton of an application.