title: How can I create an empty array in objective C, and assign value into it one by one?
body: <p>In Java, I can do that :</p>
  
  <pre><code>int[] abc = new int[10];
  for(int i=0; i&lt;abc.length; i++){
     abc[i] = i;
  }
  </code></pre>
  
  <p>How can I implement similar thing in Objective C?</p>
  
  <p>I see some answer using NSMutableArray, wt's different between this and NSArray?</p>