Home Chartgraphs Stacked Bar Chart Example using JFreeChart

Stacked Bar Chart Example using JFreeChart
Posted on: August 30, 2008 at 12:00 AM

This Example shows you how to create a Stacked bar chart using JFreeChart. Bar chart will represent scores of two team.

Stacked Bar Chart Example using JFreeChart

This Example shows you how to create a Stacked bar chart using JFreeChart. Bar chart will represent scores of two team. In the code given below we have extended class ApplicationFrame to create a frame and also pass a string value to the constructor of ApplicationFrame class by using super keyword that will be name of the created frame.

Some methods that are used in this code :
pack(): This method invokes the layout manager.

centerFrameOnScreen(): This method is used for the position of the frame in the middle of the screen.

setVisible(): This method is used for display frame on the screen.

createCategoryDataset(): This method is used to create the instance of CategoryDataset Interface and that contains a copy of the data in an array.

createStackedBarChart(): This method is used to create stacked bar chart for given va lues. It takes title, domain axis label, range axis label, dataset, Plot Orientation, legend, tool tips and urls as parameters.

setBackgroundPaint(): This method is used to set the paint used to fill the chart background.

StackedBarChart.java



import java.awt.Color;



import org.jfree.chart.ChartFactory;

import org.jfree.chart.ChartPanel;

import org.jfree.chart.JFreeChart;

import org.jfree.chart.plot.CategoryPlot;

import org.jfree.chart.plot.PlotOrientation;

import org.jfree.data.category.CategoryDataset;

import org.jfree.data.general.DatasetUtilities;

import org.jfree.ui.ApplicationFrame;

import org.jfree.ui.RefineryUtilities;



public class StackedBarChart extends ApplicationFrame {



  public StackedBarChart(String titel) {

  super(titel);



  final CategoryDataset dataset = createDataset();

  final JFreeChart chart = createChart(dataset);

  final ChartPanel chartPanel = new ChartPanel(chart);

  chartPanel.setPreferredSize(new java.awt.Dimension(500, 350));

  setContentPane(chartPanel);

  }



  private CategoryDataset createDataset() {

  double[][] data = new double[][]{

  {210, 300, 320, 265, 299, 200},

  {200, 304, 201, 201, 340, 300},

  };

  return DatasetUtilities.createCategoryDataset(

  "Team ", "Match", data);

  }



  private JFreeChart createChart(final CategoryDataset dataset) {



  final JFreeChart chart = ChartFactory.createStackedBarChart(

  "Stacked Bar Chart ", "", "Score",

  dataset, PlotOrientation.VERTICAL, true, true, false);



  chart.setBackgroundPaint(new Color(249, 231, 236));



  CategoryPlot plot = chart.getCategoryPlot();

  plot.getRenderer().setSeriesPaint(0, new Color(128, 0, 0));

  plot.getRenderer().setSeriesPaint(1, new Color(0, 0, 255));



  return chart;

  }



  public static void main(final String[] args) {



  final StackedBarChart demo = 

  new StackedBarChart("Stacked Bar Chart");

  demo.pack();

  RefineryUtilities.centerFrameOnScreen(demo);

  demo.setVisible(true);

  }

}

Output:

Download code

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