title: how work <s:push> tag in struts2?
body: <p>Below is my JSP page:</p>
  
  <pre><code>&lt;s:form action="saveOrUpdateUser" method="post"&gt;
          &lt;s:push value="userdata"&gt;
              &lt;s:hidden name="id" /&gt;                
              &lt;s:textfield name="name" label="Enter Name"/&gt;
              &lt;s:textfield name="age" label="Enter Age"/&gt;
              &lt;s:textfield name="job" label="Enter Job"/&gt;
              &lt;s:submit /&gt;
          &lt;/s:push&gt;
  &lt;/s:form&gt; 
  </code></pre>
  
  <p>How push tag working here I don't know. Here I want to know how this tag working here.</p>