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.] * * ------------------ * PieChartDemo3.java * ------------------ * (C) Copyright 2003, 2004, by Object Refinery Limited and Contributors. * * Original Author: David Gilbert (for Object Refinery Limited); * Contributor(s): -; * * $Id: PieChartDemo3.java,v 1.8 2004/04/26 19:12:00 taqua Exp $ * * Changes * ------- * 02-Jan-2002 : Version 1 (DG); * */ package org.jfree.chart.demo; import java.awt.Color; import java.awt.Font; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.plot.PiePlot; import org.jfree.data.general.DefaultPieDataset; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RefineryUtilities; /** * A pie chart with no data, to demonstrate the use of the setNoDataMessage(...) method. * */ public class PieChartDemo3 extends ApplicationFrame { /** * Default constructor. * * @param title the frame title. */ public PieChartDemo3(final String title) { super(title); // create a dataset... final DefaultPieDataset data = new DefaultPieDataset(); // create the chart... final JFreeChart chart = ChartFactory.createPieChart("Pie Chart Demo 3", // chart title data, // data true, // include legend true, false); final PiePlot plot = (PiePlot) chart.getPlot(); plot.setNoDataMessage("No data available"); plot.setNoDataMessageFont(new Font("Serif", Font.ITALIC, 10)); plot.setNoDataMessagePaint(Color.red); // 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 PieChartDemo3 demo = new PieChartDemo3("Pie Chart Demo 3"); demo.pack(); RefineryUtilities.centerFrameOnScreen(demo); demo.setVisible(true); } }