formbean with List field

[Hamster]

 
I'm wondering if I can have a formbean containing a List of Strings. Is
that recognized by Struts correctly?
 
I need that for a shopping cart implementation, where the user can
modify the amount of the articles in the shopping cart. For each article
should be a text field for entering a number. So I think I need here a
List of Strings in the form bean, right?
 
How does the implementaion look like in the form bean?