?? populationchartdemo1.java
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/* ------------------------
* PopulationChartDemo.java
* ------------------------
* (C) Copyright 2003, 2004, by Object Refinery Limited.
*
*/
package demo;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.general.DefaultKeyedValues2DDataset;
import org.jfree.data.general.KeyedValues2DDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
/**
* A population pyramid demo.
*/
public class PopulationChartDemo1 extends ApplicationFrame {
/**
* Creates a new demo.
*
* @param title the frame title.
*/
public PopulationChartDemo1(String title) {
super(title);
CategoryDataset dataset = createDataset();
// create the chart...
JFreeChart chart = ChartFactory.createStackedBarChart(
"Population Chart Demo",
"Age Group", // domain axis label
"Population (millions)", // range axis label
dataset, // data
PlotOrientation.HORIZONTAL,
true, // include legend
true, // tooltips
false // urls
);
// add the chart to a panel...
ChartPanel chartPanel = new ChartPanel(chart);
chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
setContentPane(chartPanel);
}
/**
* Creates a dataset.
*
* @return A dataset.
*/
private KeyedValues2DDataset createDataset() {
DefaultKeyedValues2DDataset data = new DefaultKeyedValues2DDataset();
data.addValue(-6.0, "Male", "70+");
data.addValue(-8.0, "Male", "60-69");
data.addValue(-11.0, "Male", "50-59");
data.addValue(-13.0, "Male", "40-49");
data.addValue(-14.0, "Male", "30-39");
data.addValue(-15.0, "Male", "20-29");
data.addValue(-19.0, "Male", "10-19");
data.addValue(-21.0, "Male", "0-9");
data.addValue(10.0, "Female", "70+");
data.addValue(12.0, "Female", "60-69");
data.addValue(13.0, "Female", "50-59");
data.addValue(14.0, "Female", "40-49");
data.addValue(15.0, "Female", "30-39");
data.addValue(17.0, "Female", "20-29");
data.addValue(19.0, "Female", "10-19");
data.addValue(20.0, "Female", "0-9");
return data;
}
/**
* Starting point for the demonstration application.
*
* @param args ignored.
*/
public static void main(String[] args) {
PopulationChartDemo1 demo = new PopulationChartDemo1("Population Chart Demo");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}
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