How to use

getData

method

in

javafx.scene.chart.BarChart

private void initChart() {
  axis = new XYChart.Series<String, Number>();
  axis.setName("Measuring points");
  chart.getData().add(axis);
  chart.getYAxis().setLabel("average micro seconds");
}

public static BarChart<Number, String> chart(String title, NumberColumn categoryColumn, NumberColumn numberColumn) {
  final CategoryAxis categoryAxis = getCategoryAxis(categoryColumn);
  final NumberAxis numberAxis = getNumberAxis(numberColumn);
  final BarChart<Number, String> bar = getNumberStringBarChart(title, numberAxis, categoryAxis);
  List<XYChart.Data<Number, String>> d2 = new ArrayList<>(numberColumn.size());
  for (int i = 0; i < numberColumn.size(); i++) {
    d2.add(new XYChart.Data<>(numberColumn.get(i), categoryColumn.getString(i)));
  }
  XYChart.Series<Number, String> series1 = getNumberStringSeries(categoryColumn, d2);
  bar.getData().add(series1);
  return bar;
}

public static BarChart<String, Number> chart(String title, StringColumn stringColumn, NumberColumn
    numberColumn) {
  final CategoryAxis categoryAxis = getCategoryAxis(stringColumn);
  final NumberAxis numberAxis = getNumberAxis(numberColumn);
  final BarChart<String, Number> barChart = getBarChart(title, categoryAxis, numberAxis);
  List<XYChart.Data<String, Number>> data = new ArrayList<>(stringColumn.size());
  for (int i = 0; i < stringColumn.size(); i++) {
    data.add(new XYChart.Data<>(stringColumn.get(i), numberColumn.get(i)));
  }
  barChart.getData().add(getSeries(numberColumn, data));
  return barChart;
}

  public static BarChart<String, Number> chart(String title, NumberColumn categoryColumn, NumberColumn numberColumn) {

    final CategoryAxis categoryAxis = getCategoryAxis(categoryColumn);
    final NumberAxis numberAxis = getNumberAxis(numberColumn);

    final BarChart<String, Number> barChart = getBarChart(title, categoryAxis, numberAxis);
    List<XYChart.Data<String, Number>> data = new ArrayList<>(categoryColumn.size());

    for (int i = 0; i < categoryColumn.size(); i++) {
      data.add(new XYChart.Data<>(categoryColumn.getString(i), numberColumn.get(i)));
    }

    barChart.getData().add(getSeries(numberColumn, data));
    return barChart;
  }
}

public static BarChart<Number, String> chart(String title, StringColumn stringColumn, NumberColumn
    numberColumn) {
  final CategoryAxis categoryAxis = getCategoryAxis(stringColumn);
  final NumberAxis numberAxis = getNumberAxis(numberColumn);
  final BarChart<Number, String> bar = getNumberStringBarChart(title, numberAxis, categoryAxis);
  List<XYChart.Data<Number, String>> d2 = new ArrayList<>(numberColumn.size());
  for (int i = 0; i < numberColumn.size(); i++) {
    d2.add(new XYChart.Data<>(numberColumn.get(i), stringColumn.get(i)));
  }
  XYChart.Series<Number, String> series1 = getNumberStringSeries(stringColumn, d2);
  bar.getData().add(series1);
  return bar;
}

  public static BarChart<String, Number> chart(String title, NumberColumn categoryColumn, NumberColumn numberColumn) {

    Table t = Table.create("", categoryColumn, numberColumn);
    t = t.sortDescendingOn(numberColumn.name());

    final CategoryAxis categoryAxis = getCategoryAxis(t.stringColumn(0));
    final NumberAxis numberAxis = getNumberAxis(t.numberColumn(1));

    final BarChart<String, Number> barChart = getBarChart(title, categoryAxis, numberAxis);
    List<XYChart.Data<String, Number>> data = new ArrayList<>(categoryColumn.size());

    for (int i = 0; i < categoryColumn.size(); i++) {
      data.add(new XYChart.Data<>(categoryColumn.getString(i), numberColumn.get(i)));
    }

    barChart.getData().add(getSeries(numberColumn, data));
    return barChart;
  }
}

series3.getData().add(new XYChart.Data(usa, 92633.68));
bc.getData().addAll(series1, series2, series3);

public static BarChart<String, Number> chart(
    String title,
    StringColumn x,
    NumberColumn y) {
  final CategoryAxis xAxis = new CategoryAxis();
  final NumberAxis yAxis = new NumberAxis();
  xAxis.setLabel(x.name());
  yAxis.setLabel(y.name());
  Table t = Table.create("", x, y);
  t = t.sortDescendingOn(y.name());
  final BarChart<String, Number> bar = new BarChart<>(xAxis, yAxis);
  bar.setTitle(title);
  List<XYChart.Data<String, Number>> d2 = new ArrayList<>(x.size());
  for (int i = 0; i < x.size(); i++) {
    d2.add(new XYChart.Data<>(t.stringColumn(0).get(i), t.nCol(1).get(i)));
  }
  XYChart.Series<String, Number> series1
      = new XYChart.Series<>(FXCollections.observableList(d2));
  series1.setName(y.name());
  bar.setLegendVisible(false);
  bar.setCategoryGap(0.0);
  bar.setBarGap(0.1);
  bar.setBackground(Background.EMPTY);
  bar.setVerticalGridLinesVisible(false);
  bar.getData().add(series1);
  return bar;
}