WOW, YOU could probably finish it in an hour!

It is going to take me an hour to sit here and think each one through invididually, and a week to impliment AFTER I figure out what is what.

Delete button I am not worried about at the moment, empty fields either. It is the toString(), currCD, listeners, and actions for my fields that have my head spinning.

I have to remark out the CurrentCD line to get it to run, but I know I need it in there for currCD to work. Once that works
I think I just need a line in my buttons to finish it up, currCD++ and currCD-- should be all that is required. If there is more to that please let me know, because everything else needs that to work before I can start it.
The real thing I want to accomplish today is Field Functionality, to make my calculations populate the fields correctly. I need currCD and a bunch of listeners and actions to do that, and I am not sure about how to do those yet.
Display and toString() would come last. Ezzarral showed me some of that last week, but I am still quite shakey on it and cannot accomplish it without help.