smallnumberdemo.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 java.io.PrintStream;
import org.jfree.chart.*;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.axis.StandardTickUnitSource;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.XYPlot;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;

public class SmallNumberDemo extends ApplicationFrame
{

    public SmallNumberDemo(String s)
    {
        super(s);
        XYSeries xyseries = new XYSeries("Small Numbers");
        xyseries.add(1.0000000000000001E-005D, 9.9999999999999998E-017D);
        xyseries.add(5.0000000000000002E-005D, 2E-012D);
        xyseries.add(0.000173D, 4.9999999999999998E-007D);
        xyseries.add(0.000212D, 9.0000000000000002E-006D);
        xyseries.add(0.00041199999999999999D, 1.2E-005D);
        XYSeriesCollection xyseriescollection = new XYSeriesCollection(xyseries);
        JFreeChart jfreechart = ChartFactory.createXYLineChart("Small Number Demo", "X", "Y", xyseriescollection, PlotOrientation.VERTICAL, true, true, false);
        XYPlot xyplot = jfreechart.getXYPlot();
        NumberAxis numberaxis = (NumberAxis)xyplot.getDomainAxis();
        numberaxis.setStandardTickUnits(new StandardTickUnitSource());
        NumberAxis numberaxis1 = (NumberAxis)xyplot.getRangeAxis();
        numberaxis1.setStandardTickUnits(new StandardTickUnitSource());
        ChartPanel chartpanel = new ChartPanel(jfreechart);
        chartpanel.setPreferredSize(new Dimension(500, 270));
        setContentPane(chartpanel);
    }

    public static void main(String args[])
    {
        System.out.println("Min Double: 4.9E-324");
        SmallNumberDemo smallnumberdemo = new SmallNumberDemo("Small Number Demo");
        smallnumberdemo.pack();
        RefineryUtilities.centerFrameOnScreen(smallnumberdemo);
        smallnumberdemo.setVisible(true);
    }
}