// A Mealy Machine must do output on every state transition.  We demonstrate 
// this by inheriting the basic FSM functionality from the FSM class, and 
// overriding the sendEvent routine to print the new state the machine has entered after
// handling the event.  This value is still returned to the caller.
public class MealyMachine extends FiniteStateMachine {
    public String sendEvent( String letter ) throws FSMException
	 
    {
        String new_state_lbl;
        
        new_state_lbl = super.sendEvent(letter);
        System.out.println( new_state_lbl );
        
        return new_state_lbl;
    }  // end sendEvent
};