public class TabelController implements Initializable {

    private ArrayList<TransaksiKeuangan> transaksiKeuanganArray;
    private xstream<ArrayList<TransaksiKeuangan>> dataXML;
    ObservableList<TransaksiKeuangan> dataTransaksiKeuangan;

    int transaksiKeuanganIndex;
    TransaksiKeuangan updatedTransaksiKeuangan = null;

    @FXML
    private TableView tbKeuangan;
    @FXML
    private TableColumn<?, ?> tcKeterangan;
    @FXML
    private TableColumn<?, ?> tcTanggal;
    @FXML
    private TableColumn<?, ?> tcNominal;
    @FXML
    private TableColumn<?, ?> tcJenisTransaksi;
    @FXML
    private Button btnHapus;
    @FXML
    private Button btnUbah;

    //    @FXML
    private void handleButtonAction(ActionEvent event) {
        try {
        } catch (NumberFormatException e) {
        }
    }

    @FXML
    private void handleTableClick(MouseEvent event) {
        btnHapus.setDisable(false);
        btnUbah.setDisable(false);
    }

    @FXML
    private void handleUpdateAction(ActionEvent event) throws IOException {
        try {
            // do something with selected proosal
            int selectedIndex;
            TransaksiKeuangan selectedTransaksiKeuangan;
            selectedTransaksiKeuangan = (TransaksiKeuangan) tbKeuangan.getSelectionModel().getSelectedItem();
            selectedIndex = tbKeuangan.getSelectionModel().getSelectedIndex();

            // deselect proposal
            tbKeuangan.getSelectionModel().select(null);
            btnHapus.setDisable(true);
            btnUbah.setDisable(true);

            // send selected proposal to update view
            UpdateController controller = new UpdateController();
            controller.setTransaksiKeuanganArrayList(transaksiKeuanganArray);
            controller.setDataXML(dataXML);
            controller.setTransaksiKeuangan(selectedTransaksiKeuangan, selectedIndex);

            FXMLLoader loader = new FXMLLoader();
            loader.setLocation(laporan.UpdateController.class.getResource("Update.fxml"));

            loader.setController(controller);

            Stage dialogStage = new Stage();
            dialogStage.setTitle("testing");
            dialogStage.initModality(Modality.APPLICATION_MODAL);
            Scene scene = new Scene(loader.load());
            dialogStage.setScene(scene);
            // Show the dialog and wait until the user closes it
            dialogStage.showAndWait();
        } catch (IOException e) {
            System.err.println(String.format("Error: %s", e.getMessage()));
        }

    }

    //tombol hapus
    @FXML
    private void handleHapusButtonAction(ActionEvent event) {
        ObservableList<TransaksiKeuangan> selectedTransaksiKeuangan, allTransaksiKeuangans;
        allTransaksiKeuangans = tbKeuangan.getItems();
        selectedTransaksiKeuangan = tbKeuangan.getSelectionModel().getSelectedItems();

        // hapus dari tabel
        selectedTransaksiKeuangan.forEach(allTransaksiKeuangans::remove);
        tbKeuangan.getSelectionModel().select(null);

        // save to xml
        ArrayList<TransaksiKeuangan> dataTransaksiKeuanganBaru = new ArrayList<>(allTransaksiKeuangans);
        dataXML.saveToXML(dataTransaksiKeuanganBaru);

        btnHapus.setDisable(true);
        btnUbah.setDisable(true);
    }

    /**
     * Initializes the controller class.
     *
     * @param url
     * @param rb
     */
    @Override
    public void initialize(URL url, ResourceBundle rb) {

        dataXML = new xstream(TransaksiKeuangan.XML_FILE_NAME, transaksiKeuanganArray);
        transaksiKeuanganArray = dataXML.loadXml();
        dataTransaksiKeuangan = observableArrayList(transaksiKeuanganArray);

        tcKeterangan.setCellValueFactory(new PropertyValueFactory<>("keterangan"));
        tcNominal.setCellValueFactory(new PropertyValueFactory<>("nominal"));
        tcTanggal.setCellValueFactory(new PropertyValueFactory<>("tanggal"));
        tcJenisTransaksi.setCellValueFactory(new PropertyValueFactory<>("jenisTransaksi"));
        tbKeuangan.setItems(dataTransaksiKeuangan);
    }

}