private void menu_closeConnActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_menu_closeConnActionPerformed
        
        Globals.global_connection.close_connection();
        this.setTitle("Kurs project,3105,Ratnikov,Chuglov. Connection state = " + Globals.global_connection.get_connection_state());
        // TODO add your handling code here:
    }//GEN-LAST:event_menu_closeConnActionPerformed