title: NSInteger release
body: <pre><code>DetailViewController.h   
  
  @interface DetailViewController : UIViewController {
      NSInteger getInteger;
      NSNumber *getNumber;
  }
  @property (nonatomic, retain) NSNumber *getNumber;
  @property (nonatomic, retain) NSInteger getInteger =&gt; Doesn't work with warning.
  </code></pre>
  
  <p>I know that NSNumber is able to release. So, I add code like this:</p>
  
  <pre><code>DetailViewController.m
  @synthesize getNumber;
  ...
  ...
  - dealloc{
    [getNumber release];
  } 
  </code></pre>
  
  <p>But how to release NSInteger? Doesn't it require release? I don't know about it.</p>