title: How to prevent the default value '0' from being shown in Struts2 textfield tag
body: <p>I have a form with several textfields. When I populate it with data, there are some integer textfields which is showing '0', which is the default value for integer. I want the textfield to be blank than a zero.</p>
  
  <pre><code>&lt;s:textfield id="txtPhone" name="phone"/&gt;
  </code></pre>
  
  <p>Please help.</p>