title: Creating a new obj-c class and "targeting" current project
body: <p>I am the newest of new to learning objective C, as I have started experimenting with it today. I am following the "become an xcoder" pdf, which is rather outdated. 
  Right now I am trying to create my first application with a GUI and the pdf tells me to create a new "Objectice-C class" and instantiate it into my current project.
  It seems the way this works has been entirely revamped in Xcode 5 though, because I have been googling for a way to do this and am only finding ways that let me select the target group when creating and saving the new objective-c class.
  I simply cannot figure out how to "link" the new class to my existing application.</p>
  
  <p>Could someone be so kind to explain this for me?</p>
  
  <p>EDIT: As a reply to the comment below, maybe I have not been clear enough.
  The situation as it is now, I have already made a new Cocao Application and have filled the window with 2 buttons and a text box, giving them names. The next step this guide tells me to take is create a new obj-c class and "instantiating" it in the application already made. That's where things go wrong.
  I'm not sure if the guide is really still a viable option to follow seeing as it is so outdated.</p>