220903,sabtu btnexit

 sekarang lgi ngedit btn exit 

 private void btnexitActionPerformed(java.awt.event.ActionEvent evt) {                                        

        // TODO add your handling code here:

        int a =JOptionPane.showConfirmDialog(null, "Do you really want to Close Application","Select",JOptionPane.YES_NO_OPTION);

        if(a==0){

            System.exit(0);

        }

    }