How can I define this FormBean in struts?

I'm a new struts learner.
I want to display a shopping cart to user, but the product items is dynamicly generated.
Is it needed to define a formBean?
If I use struts tags,......some ideas please.
Thanks

Is it needed to define a formBean?
If I use struts tags,......some ideas please.I am not sure of it is needed, but I think it is better to have a form bean for each form.
Read here
http://www.samspublishing.com/articles/article.asp?p=31197&seqNum=3
There are several tutorials available.

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How can I define this FormBean in struts?

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