title: How to get the last previous object from a NSMutableArray in iOs?
body: <pre><code>NSMutableArray * Cars = [NSMutableArray arrayWithObjects:
                            @"Audi", @"BMW",
                            @"Audi Quattro", @"Audi", nil];
  </code></pre>
  
  <p>How to get the last previous object from a NSMutableArray? 
  Also each time when i add a new object, i want to fetch the last previous object in the NSMutableArray. Can any one please help.</p>