import java.awt.Graphics2D;
import java.awt.Graphics;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
 
import javax.swing.*;
 
import org.jfree.chart.ChartFactory;
import org.jfree.chart.JFreeChart;
import org.jfree.data.general.DefaultPieDataset;
 
public class Test extends JFrame{
    Test ts;
    public Test(){
          ts=this;
          setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          setSize(400,400);
          setVisible(true);
    }
 
    public void run() {
        // create a dataset...
        final DefaultPieDataset data = new DefaultPieDataset();
        data.setValue("One", new Double(10.3));
        data.setValue("Two", new Double(8.5));
        data.setValue("Three", new Double(3.9));
        data.setValue("Four", new Double(3.9));
        data.setValue("Five", new Double(3.9));
        data.setValue("Six", new Double(3.9));
 
        // create a pie chart...
        final boolean withLegend = true;
        final JFreeChart chart = ChartFactory.createPieChart(
            "Testing", 
            data, 
            withLegend,
            true,
            false
        );
         final Graphics2D g2 = (Graphics2D) ts.getGraphics();
        final Rectangle2D chartArea = new Rectangle2D.Double(0, 0, 400, 300);
 
        chart.draw(g2, chartArea, null, null);
    }
     public static void main(String[] args) {
        Test app = new Test();
        app.run();
    }
}

>javac -classpath .;c:\jlib\jfreechart-1.0.13
.jar;c:\jlib\iText-2.1.5.jar;c:\jlib\jcommon-1.0.16.jar Test.java
 
>java -classpath .;c:\jlib\jfreechart-1.0.13.
jar;c:\jlib\iText-2.1.5.jar;c:\jlib\jcommon-1.0.16.jar Test