piechartdemo2.java

很好的制作统计图表的代码

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// Decompiler options: packimports(3) 

package org.jfree.chart.demo;

import java.awt.Dimension;
import javax.swing.JPanel;
import org.jfree.chart.*;
import org.jfree.chart.labels.StandardPieSectionLabelGenerator;
import org.jfree.chart.plot.PiePlot;
import org.jfree.data.general.DefaultPieDataset;
import org.jfree.data.general.PieDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;

public class PieChartDemo2 extends ApplicationFrame
{

    public PieChartDemo2(String s)
    {
        super(s);
        PieDataset piedataset = createDataset();
        JFreeChart jfreechart = createChart(piedataset);
        ChartPanel chartpanel = new ChartPanel(jfreechart);
        chartpanel.setPreferredSize(new Dimension(500, 270));
        setContentPane(chartpanel);
    }

    private static PieDataset createDataset()
    {
        DefaultPieDataset defaultpiedataset = new DefaultPieDataset();
        defaultpiedataset.setValue("One", 43.200000000000003D);
        defaultpiedataset.setValue("Two", 10D);
        defaultpiedataset.setValue("Three", 27.5D);
        defaultpiedataset.setValue("Four", 17.5D);
        defaultpiedataset.setValue("Five", 11D);
        defaultpiedataset.setValue("Six", 19.399999999999999D);
        return defaultpiedataset;
    }

    private static JFreeChart createChart(PieDataset piedataset)
    {
        JFreeChart jfreechart = ChartFactory.createPieChart("Pie Chart Demo 2", piedataset, true, true, false);
        PiePlot pieplot = (PiePlot)jfreechart.getPlot();
        pieplot.setNoDataMessage("No data available");
        pieplot.setExplodePercent(1, 0.29999999999999999D);
        pieplot.setLegendLabelToolTipGenerator(new StandardPieSectionLabelGenerator("Tooltip for legend item {0}"));
        return jfreechart;
    }

    public static JPanel createDemoPanel()
    {
        JFreeChart jfreechart = createChart(createDataset());
        return new ChartPanel(jfreechart);
    }

    public static void main(String args[])
    {
        PieChartDemo2 piechartdemo2 = new PieChartDemo2("Pie Chart Demo 2");
        piechartdemo2.pack();
        RefineryUtilities.centerFrameOnScreen(piechartdemo2);
        piechartdemo2.setVisible(true);
    }
}