I have a friend who posed a question to me about how to maintain the
state of a few boolean values (radio buttons to be specific) in one
(integer) database column.  It really is more of a curious question than
anything else, as he could simply add more columns to the table to avoid
even thinking about it, but for the sake of fun he didn't.  So, let's
say you have three boolean values that you need to store in one field,
and you must be able to determine what the state is (true/false) of any
of the 3 values at any time.  How would you do this?  My immediate
thought went to bit shifting or some other bit operations, but I've
never really used anything like that before, so I'm a little stuck on
this.  Thoughts?

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