private void remplirDelegationDepart() {
   listDelegationsDepart =
       villeDAO.afficheDelegation(cb_GouvernoratDepart.getSelectedItem().toString());
   for (Ville ville : listDelegationsDepart) {
     cb_DelegationDepart.addItem(ville.getDelegation());
   }
 }
 private void remplirDelegationArrivee() {
   listDelegationsArrivee =
       villeDAO.afficheDelegation(cb_GouvernoratArrivee.getSelectedItem().toString());
   for (Ville ville : listDelegationsArrivee) {
     cb_DelegationArrivee.addItem(ville.getDelegation());
   }
 }