[ad_1]
In your else block in actionPerformed you exit before reaching validate().
The problem is probably the following:
You are adding the numOweLbl to your UI, but you never set the text of it to totalOwed.
Before you do container.add(numOweLbl) you need to set its text.
numOweLbl.setText(totalOwed)
[ad_2]
solved Why aren’t my values transferring over