Java tutorial
package org.jfree.chart.demo; import java.awt.Color; import java.awt.Dimension; import javax.swing.JPanel; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.DateAxis; import org.jfree.chart.plot.CategoryPlot; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.renderer.category.StackedBarRenderer; import org.jfree.data.category.CategoryDataset; import org.jfree.data.category.DefaultCategoryDataset; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RefineryUtilities; public class StackedBarChartDemo6 extends ApplicationFrame { private static final long serialVersionUID = 1L; public StackedBarChartDemo6(String s) { super(s); JPanel jpanel = createDemoPanel(); jpanel.setPreferredSize(new Dimension(500, 270)); setContentPane(jpanel); } private static CategoryDataset createDataset() { DefaultCategoryDataset defaultcategorydataset = new DefaultCategoryDataset(); long l = 0x5265c00L; defaultcategorydataset.addValue(3L * l, "Series 1", "Category 1"); defaultcategorydataset.addValue(1L * l, "Series 2", "Category 1"); defaultcategorydataset.addValue(2L * l, "Series 3", "Category 1"); defaultcategorydataset.addValue(4L * l, "Series 1", "Category 2"); defaultcategorydataset.addValue(5L * l, "Series 2", "Category 2"); defaultcategorydataset.addValue(1L * l, "Series 3", "Category 2"); return defaultcategorydataset; } private static JFreeChart createChart(CategoryDataset categorydataset) { JFreeChart jfreechart = ChartFactory.createStackedBarChart("Stacked Bar Chart Demo 6", "Category", "Value", categorydataset, PlotOrientation.HORIZONTAL, true, true, false); jfreechart.setBackgroundPaint(Color.white); CategoryPlot categoryplot = (CategoryPlot) jfreechart.getPlot(); categoryplot.setBackgroundPaint(Color.lightGray); categoryplot.setRangeGridlinePaint(Color.white); StackedBarRenderer stackedbarrenderer = (StackedBarRenderer) categoryplot.getRenderer(); stackedbarrenderer.setDrawBarOutline(false); long l = System.currentTimeMillis(); stackedbarrenderer.setBase(l); DateAxis dateaxis = new DateAxis("Date"); dateaxis.setLowerMargin(0.0D); categoryplot.setRangeAxis(dateaxis); return jfreechart; } public static JPanel createDemoPanel() { JFreeChart jfreechart = createChart(createDataset()); return new ChartPanel(jfreechart); } public static void main(String args[]) { StackedBarChartDemo6 stackedbarchartdemo6 = new StackedBarChartDemo6("Stacked Bar Chart Demo 6"); stackedbarchartdemo6.pack(); RefineryUtilities.centerFrameOnScreen(stackedbarchartdemo6); stackedbarchartdemo6.setVisible(true); } }