title: When does table view gets created?
body: <p>I have trouble in understanding when does table 
  View gets created.  </p>
  
  <p>I have two tab view. In second tab view I have table whose <code>datasource</code> is been
  Adhered to the table view protocol.</p>
  
  <p>Whenever the second tab is selected /clicked the tables datasource method
  <code>numberOfRowsInTableView</code> is called on every click.</p>
  
  <p>I'm using xcode 4.2.</p>
  
  <p>Is that because each tab view recreates its view when the tab selected?</p>
  
  <p>Am I missing something here?</p>