StackedBarChart positive and negative bar values.

StackedBarChartSample

import java.util.Arrays;
import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.scene.Scene;
import javafx.scene.chart.CategoryAxis;
import javafx.scene.chart.NumberAxis;
import javafx.scene.chart.StackedBarChart;
import javafx.scene.chart.XYChart;
import javafx.stage.Stage;

/**
 * 
 * @author KhaledLela
 * @see http://docs.oracle.com/javafx/2/charts/bar-chart.htm
 */
public class StackedBarChartSample extends Application {

    final static String austria = "Austria";
    final static String brazil = "Brazil";
    final static String france = "France";
    final static String italy = "Italy";
    final static String usa = "USA";
    final CategoryAxis xAxis = new CategoryAxis();
    final NumberAxis yAxis = new NumberAxis();
    CustomizedStackedBarChart<String, Number> sbc;
    final XYChart.Series<String, Number> series1 =
            new XYChart.Series<String, Number>();
    final XYChart.Series<String, Number> series2 =
            new XYChart.Series<String, Number>();
    final XYChart.Series<String, Number> series3 =
            new XYChart.Series<String, Number>();

    @Override
    public void start(Stage stage) {

        System.out.println("javafx.runtime.version: " + System.getProperties().get("javafx.runtime.version"));
        stage.setTitle("Bar Chart Sample");

        xAxis.setLabel("Country");
//        yAxis.setAutoRanging(false); 
//        yAxis.setLowerBound(-2000); 
//        yAxis.setUpperBound(2000); 
//        yAxis.setTickUnit(400); 

        xAxis.setCategories(FXCollections.<String>observableArrayList(
                Arrays.asList(austria, brazil, france, italy, usa)));
        yAxis.setLabel("Value");
        series1.setName("2003");
        // plus value
        series1.getData().add(new XYChart.Data<String, Number>(austria, 200));
        series1.getData().add(new XYChart.Data<String, Number>(brazil, 300));
        series1.getData().add(new XYChart.Data<String, Number>(france, 400));
        series1.getData().add(new XYChart.Data<String, Number>(italy, 500));
        series1.getData().add(new XYChart.Data<String, Number>(usa, 600));
        // minus value
        series1.getData().add(new XYChart.Data<String, Number>(austria, -200));
        series1.getData().add(new XYChart.Data<String, Number>(brazil, -300));
        series1.getData().add(new XYChart.Data<String, Number>(france, -400));
        series1.getData().add(new XYChart.Data<String, Number>(italy, -500));
        series1.getData().add(new XYChart.Data<String, Number>(usa, -600));
        series2.setName("2004");
        series2.getData().add(new XYChart.Data<String, Number>(austria, 200));
        series2.getData().add(new XYChart.Data<String, Number>(brazil, 300));
        series2.getData().add(new XYChart.Data<String, Number>(france, 400));
        series2.getData().add(new XYChart.Data<String, Number>(italy, 500));
        series2.getData().add(new XYChart.Data<String, Number>(usa, 600));
        // minus value
        series2.getData().add(new XYChart.Data<String, Number>(austria, -200));
        series2.getData().add(new XYChart.Data<String, Number>(brazil, -300));
        series2.getData().add(new XYChart.Data<String, Number>(france, -400));
        series2.getData().add(new XYChart.Data<String, Number>(italy, -500));
        series2.getData().add(new XYChart.Data<String, Number>(usa, -600));
        series3.setName("2005");
        series3.getData().add(new XYChart.Data<String, Number>(austria, 200));
        series3.getData().add(new XYChart.Data<String, Number>(brazil, 300));
        series3.getData().add(new XYChart.Data<String, Number>(france, 400));
        series3.getData().add(new XYChart.Data<String, Number>(italy, 500));
        series3.getData().add(new XYChart.Data<String, Number>(usa, 600));
        // minus value
        series3.getData().add(new XYChart.Data<String, Number>(austria, -200));
        series3.getData().add(new XYChart.Data<String, Number>(brazil, -300));
        series3.getData().add(new XYChart.Data<String, Number>(france, -400));
        series3.getData().add(new XYChart.Data<String, Number>(italy, -500));
        series3.getData().add(new XYChart.Data<String, Number>(usa, -600));
        ObservableList<XYChart.Series<String, Number>> seriesList = FXCollections.observableArrayList(series1, series2, series3);
        sbc = new CustomizedStackedBarChart<String, Number>(xAxis, yAxis);
        sbc.setTitle("Country Summary");
        sbc.getData().setAll(seriesList);
        Scene scene = new Scene(sbc, 800, 600);
        stage.setScene(scene);
        stage.show();
    }

    public static void main(String[] args) {
        launch(args);
    }
}