title: Total length of list in using struts 2 tag
body: <p>I iterate a list using Struts 2 tags. </p>
  
  <pre><code>&lt;s:iterator value="popUpScreenDetailsList" status ="rowCounter"&gt;
      //do something
  &lt;s:/iterator&gt;
  </code></pre>
  
  <p>Is there a way, by which I can get the length of the list without iterating?</p>
  
  <p>The motivation to do it, is to use javascript to validate checkboxes.</p>