Java tutorial
/* =========================================================== * JFreeChart : a free chart library for the Java(tm) platform * =========================================================== * * (C) Copyright 2000-2004, by Object Refinery Limited and Contributors. * * Project Info: http://www.jfree.org/jfreechart/index.html * * This library is free software; you can redistribute it and/or modify it under the terms * of the GNU Lesser General Public License as published by the Free Software Foundation; * either version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * See the GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License along with this * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, * Boston, MA 02111-1307, USA. * * [Java is a trademark or registered trademark of Sun Microsystems, Inc. * in the United States and other countries.] * * --------------------------- * MinMaxCategoryPlotDemo.java * --------------------------- * (C) Copyright 2002-2004, by Object Refinery Limited and Contributors. * * Original Author: David Gilbert (for Object Refinery Limited); * Contributor(s): -; * * $Id: MinMaxCategoryPlotDemo.java,v 1.12 2004/04/30 08:10:43 mungady Exp $ * * Changes * ------- * 08-Aug-2002 : Demo for a renderer contributed by Tomer Peretz (DG); * 11-Oct-2002 : Fixed errors reported by Checkstyle (DG); * */ package org.jfree.chart.demo; import java.awt.Color; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.plot.CategoryPlot; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.renderer.category.MinMaxCategoryRenderer; import org.jfree.data.category.DefaultCategoryDataset; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RefineryUtilities; /** * A simple demonstration application showing how to create a min/max category plot. * */ public class MinMaxCategoryPlotDemo extends ApplicationFrame { /** * Creates a new demo. * * @param title the frame title. */ public MinMaxCategoryPlotDemo(final String title) { super(title); // create a dataset... final DefaultCategoryDataset dataset = new DefaultCategoryDataset(); dataset.addValue(1.0, "First", "Category 1"); dataset.addValue(4.0, "First", "Category 2"); dataset.addValue(3.0, "First", "Category 3"); dataset.addValue(5.0, "First", "Category 4"); dataset.addValue(5.0, "First", "Category 5"); dataset.addValue(7.0, "First", "Category 6"); dataset.addValue(7.0, "First", "Category 7"); dataset.addValue(8.0, "First", "Category 8"); dataset.addValue(5.0, "Second", "Category 1"); dataset.addValue(7.0, "Second", "Category 2"); dataset.addValue(6.0, "Second", "Category 3"); dataset.addValue(8.0, "Second", "Category 4"); dataset.addValue(4.0, "Second", "Category 5"); dataset.addValue(4.0, "Second", "Category 6"); dataset.addValue(2.0, "Second", "Category 7"); dataset.addValue(1.0, "Second", "Category 8"); dataset.addValue(4.0, "Third", "Category 1"); dataset.addValue(3.0, "Third", "Category 2"); dataset.addValue(2.0, "Third", "Category 3"); dataset.addValue(3.0, "Third", "Category 4"); dataset.addValue(6.0, "Third", "Category 5"); dataset.addValue(3.0, "Third", "Category 6"); dataset.addValue(4.0, "Third", "Category 7"); dataset.addValue(3.0, "Third", "Category 8"); // create the chart... final JFreeChart chart = ChartFactory.createBarChart("Min/Max Category Plot", // chart title "Category", // domain axis label "Value", // range axis label dataset, // data PlotOrientation.VERTICAL, true, // include legend true, // tooltips false // urls ); // NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART... // set the background color for the chart... chart.setBackgroundPaint(Color.yellow); // get a reference to the plot for further customisation... final CategoryPlot plot = chart.getCategoryPlot(); plot.setRenderer(new MinMaxCategoryRenderer()); // OPTIONAL CUSTOMISATION COMPLETED. // add the chart to a panel... final ChartPanel chartPanel = new ChartPanel(chart); chartPanel.setPreferredSize(new java.awt.Dimension(500, 270)); setContentPane(chartPanel); } // **************************************************************************** // * JFREECHART DEVELOPER GUIDE * // * The JFreeChart Developer Guide, written by David Gilbert, is available * // * to purchase from Object Refinery Limited: * // * * // * http://www.object-refinery.com/jfreechart/guide.html * // * * // * Sales are used to provide funding for the JFreeChart project - please * // * support us so that we can continue developing free software. * // **************************************************************************** /** * Starting point for the demonstration application. * * @param args ignored. */ public static void main(final String[] args) { final MinMaxCategoryPlotDemo demo = new MinMaxCategoryPlotDemo("Min/Max Category Chart Demo"); demo.pack(); RefineryUtilities.centerFrameOnScreen(demo); demo.setVisible(true); } }