Horizontal Bar Chart Example using JFreeChart

This Example shows you how to create a Horizontal bar chart using JFreeChart. This example showing you match score of two teams .

Code Description:
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.

createBarChart(): This method is used to create bar chart for given values. It takes title, category axis label, value axis label, dataset, Plot Orientation, legend, tool tips and urls as parameter.

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

BarChartDemo2:


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 BarChartDemo2 extends ApplicationFrame {



    public BarChartDemo2(String title) {

        super(title);



        CategoryDataset dataset = createDataset();

        JFreeChart chart = createChart(dataset);



        ChartPanel chartPanel = new ChartPanel(chart);

        chartPanel.setPreferredSize(new java.awt.Dimension(600, 350));

        setContentPane(chartPanel);

    }



    private CategoryDataset createDataset() { 

        final double[][] data = new double[][] {

            {4,2,-1,-3,-3,-1,2,4,2},

            {3,1,-2,-4,-2,1,3,3,1}

        };

        return DatasetUtilities.createCategoryDataset("Team ", "Match ", data);

    }



    private JFreeChart createChart(final CategoryDataset dataset) {



        final JFreeChart chart = ChartFactory.createBarChart(

                "Score Bord", "Match", "Score", dataset,

                PlotOrientation.HORIZONTAL, true, false, 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) {

        BarChartDemo2 chart = new BarChartDemo2("Score Bord");

        chart.pack();

        RefineryUtilities.centerFrameOnScreen(chart);

        chart.setVisible(true);

    }

}

Output:

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