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This thread is solved, but there is no option in the thread menu for me to mark it as such. Is there another way?

I finally figured it out. I had the loanField and monthField variables mixed up. For the heck of it, I decided to enter a number into the monthly payment text field instead of the mortgage field and...

I have it now where the Exception in thread "AWT-EventQueue-0" java.lang.NumberFormatException: empty String, error no longer pops up. However, no matter the number I place in the loanField text...

Here is the error:

Exception in thread "AWT-EventQueue-0" java.lang.NumberFormatException: empty String

I fixed this error with a try and catch, but now the button does not calculate anything....