title: how to update multiple check box value when retrived from database
body: <p>using this tag lib </p>
  
  <pre><code>    &lt;%@taglib  uri="http://java.sun.com/jsp/jstl/core" prefix="c" %&gt;
  </code></pre>
  
  <p>but getting error </p>
  
  <p><b>The function contains must be used with a prefix when a default namespace is not specified</b></p>
  
  <p>i am using this method . to make multiple check boxed checked while fetching from database</p>
  
  <pre><code>   &lt;c:set var="medium" value="&lt;%=rs.getString("medium")%&gt;" /&gt;
  
         English
      &lt;input type="checkbox" name="C1" &lt;c:if test="${fn:medium.contains('English')}"&gt;checked&lt;/c:if&gt;&gt;
      Kannada
      &lt;input type="checkbox" name="C1"
             &lt;c:if test="${medium.contains('Kannada')}"&gt;checked&lt;/c:if&gt;&gt;
      Hindi
      &lt;input type="checkbox" name="C1"
             &lt;c:if test="${medium.contains('Hindi')}"&gt;checked&lt;/c:if&gt;&gt;
  </code></pre>