How to do matematical operation in jsp.

[Stefano Tranquillini]

Hi all
i've a hashmap that contains object and a value(int).

i would display all the value of the object:

   <s:iterator value="#session.cart.items">
             <s:property value="key.name" />
              <s:property value="key.price" />x<s:property value="value" />
   </s:iterator>

and a value calculated at runtime that is a moltiplication of:
<s:property value="key.price" /> and <s:property value="value" />

how can i do that?

thanks

-- 
Stefano