title: How to assign integer from NSMutableArray
body: <p>I would like to assign NSInteger by using NSMutableArray is there any way to solve this?
  It is not working on simulator and cut off when run the application.</p>
  
  <pre><code>NSInteger Section;
  NSMutableArray dataSourceSection;
  
  Section = (NSInteger)[dataSourceSection objectAtIndex:2];
  </code></pre>
  
  <p>Thank you.</p>