Lancer un script à la fermeture de la fenêtre

public class MainFenetre extends Observable {

protected JFrame fenetre;

    Fenetre fenetre;

    MainFenetre mf;

    public MainFenetre() {

        mf = this;

        fenetre = new JFrame();

        fenetre.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);

        fenetre.addWindowListener (new WindowAdapter() {

            public void windowClosing(WindowEvent e){

                setChanged();

                ((Observable) obj).notifyObservers("quitter");

            }

        });

    }    

public class Controleur implements Observer {

    MainFenetre fenetre = new MainFenetre();

    public Controleur() {

        /*

         * Lancement de l'ecoute des evenements de la fenetre

         */

        fenetre.addObserver(this);

    }

public void update(Observable arg0, Object pCommand) {

        String commande = (String) pCommand;

        switch (commande) {

        case "quitter":

            close();

            break;

        }

}