public void stackedGraphExample(Stage stage) {
    stage.setTitle("Stacked Bar Chart");
    final StackedBarChart<String, Number> stackedBarChart
            = new StackedBarChart<>(xAxis, yAxis);
    stackedBarChart.setTitle("Country Population");
    xAxis.setLabel("Country");
    xAxis.setCategories(FXCollections.<String>observableArrayList(
            Arrays.asList(belgium, germany, france,
                    netherlands, sweden, unitedKingdom)));
    yAxis.setLabel("Population");

    series1.setName("1950");
    addDataItem(series1, belgium, 8639369);
    addDataItem(series1, france, 42518000);
    addDataItem(series1, germany, 68374572);
    addDataItem(series1, netherlands, 10113527);
    addDataItem(series1, sweden, 7014005);
    addDataItem(series1, unitedKingdom, 50127000);

    series2.setName("1960");
    addDataItem(series2, belgium, 9118700);
    addDataItem(series2, france, 46584000);
    addDataItem(series2, germany, 72480869);
    addDataItem(series2, netherlands, 11486000);
    addDataItem(series2, sweden, 7480395);
    addDataItem(series2, unitedKingdom, 52372000);

    series3.setName("1970");
    addDataItem(series3, belgium, 9637800);
    addDataItem(series3, france, 51918000);
    addDataItem(series3, germany, 77783164);
    addDataItem(series3, netherlands, 13032335);
    addDataItem(series3, sweden, 8042803);
    addDataItem(series3, unitedKingdom, 55632000);

    Scene scene = new Scene(stackedBarChart, 800, 600);
    stackedBarChart.getData().addAll(series1, series2, series3);
    stage.setScene(scene);
    stage.show();
}
 

/**
 * Generates the history chart with the summary of test executions.
 *
 * @param dataSet input data-set for the chart
 * @param historyChartFileName file name of the history graph
 */
public void generateResultHistoryChart(Map<String, BuildExecutionSummary> dataSet, String historyChartFileName) {

    final CategoryAxis xAxis = new CategoryAxis();
    final NumberAxis yAxis = new NumberAxis();
    final StackedBarChart<String, Number> stackedBarChart = new StackedBarChart<>(xAxis, yAxis);
    // This represents the series of values e.g: Failed, skipped, Passed
    final XYChart.Series<String, Number>[] seriesSet = new XYChart.Series[]{new XYChart.Series<>(),
            new XYChart.Series<>(), new XYChart.Series<>()};

    xAxis.setCategories(FXCollections.<String>observableArrayList(dataSet.keySet()));
    // Disabling animation
    xAxis.setAnimated(false);
    yAxis.setAnimated(false);
    stackedBarChart.setAnimated(false);
    // Set Axis Names
    xAxis.setLabel("Build date");
    yAxis.setLabel("Number of infrastructure combinations");

    // Setting series names
    seriesSet[0].setName("Test failures");
    seriesSet[1].setName("Deployment errors");
    seriesSet[2].setName("Test passed");
    // Setting space between the bars
    stackedBarChart.setCategoryGap(50);
    //Setting the title of the bar chart.
    stackedBarChart.setTitle("Test Run History");

    dataSet.forEach((key, summary) -> {
        seriesSet[0].getData().add(new XYChart.Data<>(key, summary.getFailedTestPlans()));
        seriesSet[1].getData().add(new XYChart.Data<>(key, summary.getSkippedTestPlans()));
        seriesSet[2].getData().add(new XYChart.Data<>(key, summary.getPassedTestPlans()));
    });

    // Adding the series to the chart
    for (XYChart.Series series : seriesSet) {
        stackedBarChart.getData().add(series);
    }
    genChart(stackedBarChart, 800, 800, historyChartFileName, "styles/summary.css");
}
 

@Override
protected XYChart<String, Number> createXYChart() {
    final CategoryAxis xAxis = new CategoryAxis();
    final NumberAxis yAxis = new NumberAxis();
    final XYChart<String, Number> chart = new StackedBarChart<String, Number>(xAxis, yAxis);
    chart.getStyleClass().add("chart-extension");
    return chart;
}