There's quite a bit missing. What you need to do is to make an HTML form:
Forms in HTML documents
Bookmark that page and read it often.
Your form element should contain your input controls. You need to re-arrange your code so that the table containing your radio controls is enclosed by the form element. Choose a 'method' for your form - 'get' (the default) can be handy while you're developing because when you submit the form, the data is 'sent' back to the server as URL parameters so you can just eyeball the URL your browser uses to check to see if everything is working ok. It might look ugly in production. 'post' is usually more semantically correct (something is usually updated on the server).
Once you've changed your page so that it reliably sends the right data back to the server as URL parameters, you'll need to add some code to validate submitted form data before you build your page so that you can either update your database and (usually) redirect to a form-submitted-correctly page, or build the page with some indication of potential problems (user didn't complete all questions, for example).
I don't know JSP, but it looks like you're using it in an old-school way in which there should be some way of getting hold of a 'request' object which in turn would have a method for returning the values of named parameters in the current URL.
edit: this page looks as though it has everything you need:
Request Object In JSP
I do something very similar to handle form data on my platform, but I usually use only one page / server-side entity to produce the original form and handle the input. That's a matter of taste, I guess.