Solution: PropertyChangeListener

Obviously, using a ChangeListener for complex widgets is not productive.

(How would you know what action was taken?)

Swing therefore provides a PropertyChangeListener interface to capture state changes in complex widgets. (Note that its part of the beans package)

import java.beans.*;

public void propertyChange(PropertyChangeEvent e);

Useful methods in the PropertyChangeEvent object include:

public String getPropertyName();

public Object getNewValue();

public Object getOldValue();

public void setPropagationId(Object propagationId);

public Object getPropagationId();