Before we can proceed with creating our "HelloXcode4_GUI" application, we must first launch the Xcode development environment. This can be located in the
/Xcode4/Applications folder. Alternatively, you can use the spotlight to search for Xcode by typing xcode into the search box window.
When you launch Xcode, you will be presented with the Welcome to Xcode screen, as shown in the following screenshot:
It is very simple to create this in Xcode. Just follow the steps listed below: