How to draw Pie Chart in java

JFree Chart

JFreeChart is a free 100% Java chart library that makes it easy for developers to display professional quality charts in their applications. With JfreeChart liberary Visualization is easy in java , you can visualize your data in different ways.

Using JfreeChart liberary you can draw pie chart, xyLine chart , bar chart etc. just copy and paste the below given code and add external jars files to your class path,jfreechart-1.0.13  and jcommon-1.0.16.

Code example for pie chart in java. 

package aurangzeb.utk.com;

import java.awt.*;

import org.jfree.chart.ChartFactory;

import org.jfree.chart.ChartFrame;

import org.jfree.chart.JFreeChart;

import org.jfree.chart.title.*;

import org.jfree.data.general.DefaultPieDataset;

import org.jfree.ui.*;

public class pie{

public static void main(String arg[]){

      DefaultPieDataset pieDataset = new DefaultPieDataset();

      pieDataset.setValue("One", new Integer(10));

      pieDataset.setValue("Two", new Integer(20));

      pieDataset.setValue("Three", new Integer(30));

      pieDataset.setValue("Four", new Integer(10));

      pieDataset.setValue("Five", new Integer(20));

      pieDataset.setValue("Six", new Integer(10));

      JFreeChart chart = ChartFactory.createPieChart("Pie Chart using JFreeChart", pieDataset, true,true,true);

      ChartFrame frame1=new ChartFrame("Pie Chart",chart);

      frame1.setVisible(true);

      frame1.setSize(300,300);

      }

}

Output: 

  Code Example of xyLine Chart in java:

package aurangzeb.utk.com;

import org.jfree.chart.*;

import org.jfree.chart.plot.PlotOrientation;

import org.jfree.data.category.DefaultCategoryDataset;

import org.jfree.data.general.DefaultPieDataset;

import org.jfree.data.xy.*;

import org.jfree.data.*;

public class xyLine{

public static void main(String arg[]){

      XYSeries series = new XYSeries("Collection API objects ");

      series.add(200.0, 300);

      series.add(150, 250.0);

      series.add(200.0, 250.0);

      series.add(170.0, 250.0);

      XYDataset xyDataset = new XYSeriesCollection(series);

      JFreeChart chart = ChartFactory.createXYLineChart

                  ("XYLine Chart using JFreeChart", "time", "collection objects", xyDataset, PlotOrientation.VERTICAL, true, true, false);

      ChartFrame frame1=new ChartFrame("XYLine Chart",chart);

      frame1.setVisible(true);

      frame1.setSize(300,300);

      }

}

  output:

Example Code for TimeSeriesChart:

package aurangzeb.utk.com;

import java.awt.BasicStroke;

import java.awt.Color;

import java.text.SimpleDateFormat;

import org.jfree.chart.ChartFactory;

import org.jfree.chart.ChartPanel;

import org.jfree.chart.JFreeChart;

import org.jfree.chart.axis.DateAxis;

import org.jfree.chart.plot.XYPlot;

import org.jfree.chart.renderer.xy.StandardXYItemRenderer;

import org.jfree.chart.renderer.xy.XYItemRenderer;

import org.jfree.data.time.Minute;

import org.jfree.data.time.TimeSeries;

import org.jfree.data.time.TimeSeriesCollection;

import org.jfree.data.xy.XYDataset;

import org.jfree.ui.ApplicationFrame;

import org.jfree.ui.RefineryUtilities;

public class TimeSeriesDemo12 extends ApplicationFrame {

    /**

     * A demo.

     *

     * @param title  the frame title.

     */

    public TimeSeriesDemo12(final String title) {

        super(title);

        final XYDataset dataset = createDataset();

        final JFreeChart chart = createChart(dataset);

        final ChartPanel chartPanel = new ChartPanel(chart);

        chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));

        chartPanel.setMouseZoomable(true, false);

        setContentPane(chartPanel);

    }

   

    @SuppressWarnings("deprecation")

      private JFreeChart createChart(final XYDataset dataset) {

        final JFreeChart chart = ChartFactory.createTimeSeriesChart(

            "TimeSeries Chart in java",

            "Date",

            "Value",

            dataset,

            true,

            true,

            false

        );

        chart.setBackgroundPaint(Color.white);

       

//        final StandardLegend sl = (StandardLegend) chart.getLegend();

  //      sl.setDisplaySeriesShapes(true);

        final XYPlot plot = chart.getXYPlot();

        //plot.setOutlinePaint(null);

        plot.setBackgroundPaint(Color.lightGray);

        plot.setDomainGridlinePaint(Color.white);

        plot.setRangeGridlinePaint(Color.white);

    //    plot.setAxisOffset(new Spacer(Spacer.ABSOLUTE, 5.0, 5.0, 5.0, 5.0));

        plot.setDomainCrosshairVisible(true);

        plot.setRangeCrosshairVisible(false);

       

        final XYItemRenderer renderer = plot.getRenderer();

        if (renderer instanceof StandardXYItemRenderer) {

            final StandardXYItemRenderer rr = (StandardXYItemRenderer) renderer;

            rr.setPlotImages(true);

            rr.setShapesFilled(true);

            renderer.setSeriesStroke(0, new BasicStroke(2.0f));

            renderer.setSeriesStroke(1, new BasicStroke(2.0f));

           }

       

        final DateAxis axis = (DateAxis) plot.getDomainAxis();

        axis.setDateFormatOverride(new SimpleDateFormat("hh:mma"));

       

        return chart;

    }

   

   

    private XYDataset createDataset() {

        final TimeSeriesCollection dataset = new TimeSeriesCollection();

        dataset.setDomainIsPointsInTime(true);

       

        final TimeSeries s1 = new TimeSeries("Series 1", Minute.class);

        s1.add(new Minute(0, 0, 7, 12, 2003), 1.2);

        s1.add(new Minute(30, 12, 7, 12, 2003), 3.0);

        s1.add(new Minute(15, 14, 7, 12, 2003), 8.0);

       

        final TimeSeries s2 = new TimeSeries("Series 2", Minute.class);

        s2.add(new Minute(0, 3, 7, 12, 2003), 0.0);

        s2.add(new Minute(30, 9, 7, 12, 2003), 0.0);

        s2.add(new Minute(15, 10, 7, 12, 2003), 0.0);

       

        dataset.addSeries(s1);

        dataset.addSeries(s2);

        return dataset;

    }

    /**

     * Starting point for the demonstration application.

     *

     * @param args  ignored.

     */

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

        final TimeSeriesDemo12 demo = new TimeSeriesDemo12("Time Series Demo 12");

        demo.pack();

        RefineryUtilities.centerFrameOnScreen(demo);

        demo.setVisible(true);

    }

}

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