private void jDateChooser1MouseExited(java.awt.event.MouseEvent evt) {
        Date d = new Date();
        SimpleDateFormat f = new SimpleDateFormat("yyyy");
        int YearNow = Integer.parseInt(f.format(d));
        int YearBD = Integer.parseInt(f.format(jDateChooser1.getDate()));
        int BD = YearNow -  YearBD;
        jTextField1.setText(""+BD);

}