title: how to add int value from array to NSNumber?
body: <p><strong>Here is my code</strong></p>
  
  <p>I'm looping through the array and adding to the <code>NSNumber</code>.</p>
  
  <pre><code>NSNumber *totalValue = 0; 
  NSMutableArray *items = [10, 35, 25]; // Just for demo
  for (int i=0; i &lt; items.count; i++)
  {
      totalValue = totalValue + [items objectAtIndex:i] // How do I add the totalValue?
  }
  </code></pre>
  
  <p>Can someone help me with this code?</p>