Different font weight for certain table rows in a tableView

Question

Dear all,
I Need to add a summary row in a TableView to calculate the sum of all values above this row. For every row I have an object, called KostenDTO.
class SummCurrencyTableCellFactory implements Callback, TableCell> {
     private NumberFormat numFormat = null;
     public SummCurrencyTableCellFactory(NumberFormat numFormat) {
          this.numFormat = numFormat;
     @Override public TableCell call(TableColumn param) {
          TableCell cell = new TableCell() {
               @Override public void updateItem(final Float item, boolean empty) {
               if (item != null) {
                    setText(numFormat.format(item));
                    setStyle("  -fx-alignment: CENTER-RIGHT;");
                    if (item < 0.0) {
                         this.setTextFill(Color.RED);
                    } else {
                         this.setTextFill(Color.BLACK);
              } else {
                    setText("");
     return cell;
how can I Change the font weight of the sum-row to bold?
Thank you and regards Tim

Answer 1

You can do
  String fontWeight ;
  if (getIndex() == getTableColumn().getTableView().getItems().size()-1) {
  fontWeight = "-fx-font-weight: bold;";
  } else {
  fontWeight = "-fx-font-weight: normal;";
  setStyle("-fx-alignment: CENTER-RIGHT;\n" + fontWeight);
in the updateItem(...) method, assuming the sum row is the last row in the table.