Bar Chart Example using JFreeChart

In this code 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.

Bar Chart Example using JFreeChart

Bar Chart Example using JFreeChart

     

This Example shows you how to create a bar chart using JFreeChart.
Code given below creates a bar chart of scores of two teams in matches. 

Description of the code:
In this code 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.

createBarChart():  This method is used to create bar chart for given values. It  takestitle, category axis label, value axis label, dataset, PlotOrientation, legend, tool tips and urls as parameters.

BarChartDemo1.java:

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;

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 BarChartDemo1 extends ApplicationFrame {

  public BarChartDemo1(String title) {
  super(title);

  final CategoryDataset dataset = createDataset();
  final JFreeChart chart = createChart(dataset);

  final ChartPanel chartPanel = new ChartPanel(chart);
  chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
  setContentPane(chartPanel);
  }

  private CategoryDataset createDataset() { 
  final double[][] data = new double[][] {
  {210,300,320,265,299},
  {200,304,201,201,340},
  };
 return DatasetUtilities.createCategoryDataset("Team ", 
   "Match ", data);
  }

  private JFreeChart createChart(final CategoryDataset dataset) {

  final JFreeChart chart = ChartFactory.createBarChart(
  "Bar Chart Demo", "Category", "Score", dataset,
  PlotOrientation.VERTICAL, true, true, false);
  return chart;
  }

  public static void main(final String[] args) {
 BarChartDemo1 chart = new BarChartDemo1("Vertical Bar Chart Demo");
  chart.pack();
  RefineryUtilities.centerFrameOnScreen(chart);
  chart.setVisible(true);
  }
}

Output:



Download code

Tutorials

  1. Chart & Graphs Tutorials in Java
  2. Introduction to Graphs and Charts
  3. Types of Graphs and Charts
  4. Open Source Charting and Reporting Tools in Java
  5. JFreeChart - An Introduction
  6. Pie Chart
  7. 3D Pie Chart
  8. Area Chart
  9. XYArea Chart
  10. XYLine Chart
  11. Bar Chart
  12. 3D Bar Chart
  13. WaterFall Chart
  14. Polar Chart
  15. Bar Chart Example using JFreeChart
  16. Horizontal Bar Chart Example using JFreeChart
  17. Stacked 3d Bar Chart Example using JFreeChart
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  20. Category Step Chart Example using JFreeChart
  21. Candle Stick Chart Example using JFreeChart
  22. Box And Whisker Chart Example using JFreeChart
  23. Combined Category Plot Example using JFreeChart
  24. Create a pie chart in jsp page using JFreeChart
  25. Create multiple pie chart in single frame using JFreeChart
  26. Create a bar chart in JSP page using JFreeChart
  27. Create area chart in JSP page using JFreeChart
  28. Create a 3D bar chart in JSP page using JFreeChart
  29. Create a polar chart using JFreeChart
  30. Create a dual axis chart using JFreeChart