title: Two Dimension NSMutableArray help?
body: <p>Ok, I have some C# code that looks like this and I was wondering what other developers would recommend if I am trying to put this into Objective-C.</p>
  
  <pre><code>List&lt;List&lt;string&gt;&gt; meta_data
  </code></pre>
  
  <p>I'm planning on using <code>NSMutableArray</code> but how to exactly get that two-dimensional array figured out is my problem, since there is no such thing as a multidimensional array in Objective-C. I'm new to using <code>NSMutableArray</code>, so I still need some help every now and then.</p>
  
  <p>I know I will just add string objects to the array using NSString once I have the whole "two-dimensional" part figured out.</p>