how can I get Chekbox value

[hari_s]

How can I get an iterate value 
And this is My code 
 
<logic:iterate id="tanda" name="halForm" property="data"  >
<logic:present name="tanda">
<td><bean:write property="nilai" name="tanda" filter="true"  /></td>
<td><bean:write property="nama" name="tanda" filter="true"  /></td>
<td><html:checkbox property="nilai2" indexed="true"  /></td>
 
 
</tr>
</logic:present>
</logic:iterate>
 
I want to take the value from bean:write that the checkbox value is
true.
Thank you, for the answer ..........