title: adding different time in JSTL
body: <p>I'm getting different time <strong>(e.g. 05:25)</strong> as a String from Arrayist and displaying in table. I need to add total time. But below code is throwing Exception as i'm trying to add String.</p>
  
  <pre><code>&lt;c:set var="total" value="${0}"/&gt; 
  &lt;c:forEach var="listItems" items="${requestScope.accTimeSheetList}"&gt;
  &lt;tr&gt;
  &lt;td&gt;&lt;c:out value='${listItems.myTime}'/&gt;&lt;/td&gt;  (e.g. 05:25)
  &lt;/tr&gt;
  &lt;c:set var="total" value="${total + listItems.myTime}"/&gt; 
  &lt;/c:forEach&gt;
   &lt;td&gt;
   ${total} 
  &lt;/td&gt;
  </code></pre>
  
  <p>Please help me out in solving this issue.</p>