linechartdemo3.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.axis.NumberAxis;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;
import org.jfree.data.xy.*;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;

public class LineChartDemo3 extends ApplicationFrame
{

    public LineChartDemo3(String s)
    {
        super(s);
        JPanel jpanel = createDemoPanel();
        jpanel.setPreferredSize(new Dimension(500, 270));
        setContentPane(jpanel);
    }

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

    private static XYDataset createDataset()
    {
        XYSeriesCollection xyseriescollection = new XYSeriesCollection();
        for(int i = 0; i < 10; i++)
        {
            XYSeries xyseries = new XYSeries("S" + i);
            for(int j = 0; j < 10; j++)
                xyseries.add(j, Math.random() * 100D);

            xyseriescollection.addSeries(xyseries);
        }

        return xyseriescollection;
    }

    private static JFreeChart createChart(XYDataset xydataset)
    {
        JFreeChart jfreechart = ChartFactory.createXYLineChart("Line Chart Demo 3", "X", "Y", xydataset, PlotOrientation.VERTICAL, true, true, false);
        XYPlot xyplot = (XYPlot)jfreechart.getPlot();
        XYLineAndShapeRenderer xylineandshaperenderer = (XYLineAndShapeRenderer)xyplot.getRenderer();
        xylineandshaperenderer.setShapesVisible(true);
        xylineandshaperenderer.setDefaultShapesFilled(true);
        xylineandshaperenderer.setDrawOutlines(true);
        NumberAxis numberaxis = (NumberAxis)xyplot.getRangeAxis();
        numberaxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
        return jfreechart;
    }

    public static void main(String args[])
    {
        LineChartDemo3 linechartdemo3 = new LineChartDemo3("Line Chart Demo 3");
        linechartdemo3.pack();
        RefineryUtilities.centerFrameOnScreen(linechartdemo3);
        linechartdemo3.setVisible(true);
    }
}