PieChart

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartFrame;
import org.jfree.chart.JFreeChart;
import org.jfree.data.general.DefaultPieDataset;
import org.jfree.ui.RefineryUtilities;

public class PieChart {

public static void main(String[] args){

DefaultPieDataset pieDataset = new DefaultPieDataset();
pieDataset.setValue("JavaWorld", 75);
pieDataset.setValue("Other", 25);
JFreeChart chart = ChartFactory.createPieChart
("Sample Pie Chart", // Title
pieDataset, // Dataset
true,// legend
false,// tooltips
false// URL
);

// create and display a frame...
ChartFrame frame = new ChartFrame("Example", chart);
frame.pack();
RefineryUtilities.centerFrameOnScreen(frame);
frame.setVisible(true);

}
}