title: Adding values to a listbox in zkoss using java
body: <p>I need to add values to a listbox in zkoss using java - I mean dynamic values.</p>
  
  <p>I have an zul like this</p>
  
  <pre><code>&lt;window id="win_1" use="com.test.tets"&gt;
      &lt;listbox id="a"&gt;
          &lt;listhead&gt;
              &lt;listheader label="Name"   /&gt;
              &lt;listheader label="Age"   /&gt;
              &lt;listheader label="Sex"   /&gt;
          &lt;/listhead&gt;
          &lt;listitem id="i"&gt;        
          &lt;/listitem&gt;
      &lt;/listbox&gt;
  &lt;/window&gt;
  </code></pre>
  
  <p>I need to add values from mysql db to this listbox. How can I do that?</p>