title: Objective C initWithNibName
body: <p>I am facing some difficulties figuring out what this function in the Apple tutorials stands for:</p>
  
  <pre><code>[[MyViewController alloc] initWithNibName:@"MyViewController" bundle:[NSBundle mainBundle]]
  </code></pre>
  
  <p>My questions are: what does the "@" stand for before MyViewController?</p>
  
  <p>Addionally, as I am following <a href="http://developer.apple.com/library/ios/#documentation/iPhone/Conceptual/iPhone101/Articles/03_AddingViewController.html" rel="nofollow">this</a> tutorial, I was wondering: There are to nibs in my project: the automatically generated MainWindow.xib and MyViewController.xib – I was wondering: why do I have two if I only need one?</p>
  
  <p>Thanks in advance!</p>