Swing - Changing the content of a panel using UpdateUI

Question

I am going through a legacy application which is using Swing and i am struggling to figure out how the screens are changing when a user clicks a button. One of the reasons i

Answer 1

As per comments by ziggy (glad it helped)

Have a look at the PropertyChangeListeners that appear to be added in the code. In particular the propertyChange(PropertyChangeEvent e) method is where the code which changes the content will be present.

+1 to trashgod nice example/advice as always