private void MenuItemFecharActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_MenuItemFecharActionPerformed
        if(JOptionPane.showConfirmDialog(rootPane, "Você tem certeza que deseja fechar","",JOptionPane.OK_CANCEL_OPTION) == 0){
            System.exit(0);
        }
    }//GEN-LAST:event_MenuItemFecharActionPerformed