Word of advice; something I learned as well from the forum community.
Try as best you can to reduce the code down to the smallest ammount possible. It is painful to read through code written by another person without good comments. So the alternative is to post code snippets that are in the identified region where your problem specifically is.
The added benefit is twofold:
1. You will get better and quicker posts.
2. In breaking down the code into a problem segment, you may well discover the answer to your own question by the time it's ready for posting.
So, conclusion:
Show me the snippet where are data is being placed into the JTextFields and I can better assist you.