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.] * * -------------------- * TimeSeriesDemo3.java * -------------------- * (C) Copyright 2002-2004, by Object Refinery Limited and Contributors. * * Original Author: David Gilbert (for Object Refinery Limited); * Contributor(s): -; * * $Id: TimeSeriesDemo3.java,v 1.11 2004/04/26 19:12:03 taqua Exp $ * * Changes * ------- * 06-Aug-2002 : Version 1 (DG); * 11-Oct-2002 : Fixes issues reported by Checkstyle (DG); * */ package org.jfree.chart.demo; import java.text.SimpleDateFormat; 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.axis.DateTickUnit; import org.jfree.chart.plot.XYPlot; import org.jfree.chart.renderer.xy.StandardXYItemRenderer; import org.jfree.data.time.Month; import org.jfree.data.time.TimeSeries; import org.jfree.data.time.TimeSeriesCollection; import org.jfree.data.xy.XYDataset; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RefineryUtilities; /** * A time series demo, with monthly data, where the tick unit on the axis is set to * one month also (this switches off the auto tick unit selection, and *can* result in * overlapping labels). * */ public class TimeSeriesDemo3 extends ApplicationFrame { /** * A demonstration application showing a quarterly time series containing a null value. * * @param title the frame title. */ public TimeSeriesDemo3(final String title) { super(title); final TimeSeries series1 = new TimeSeries("Series 1", Month.class); series1.add(new Month(1, 2002), 500.2); series1.add(new Month(2, 2002), 694.1); series1.add(new Month(3, 2002), 734.4); series1.add(new Month(4, 2002), 453.2); series1.add(new Month(5, 2002), 500.2); series1.add(new Month(6, 2002), 345.6); series1.add(new Month(7, 2002), 500.2); series1.add(new Month(8, 2002), 694.1); series1.add(new Month(9, 2002), 734.4); series1.add(new Month(10, 2002), 453.2); series1.add(new Month(11, 2002), 500.2); series1.add(new Month(12, 2002), 345.6); final TimeSeries series2 = new TimeSeries("Series 2", Month.class); series2.add(new Month(1, 2002), 234.1); series2.add(new Month(2, 2002), 623.7); series2.add(new Month(3, 2002), 642.5); series2.add(new Month(4, 2002), 651.4); series2.add(new Month(5, 2002), 643.5); series2.add(new Month(6, 2002), 785.6); series2.add(new Month(7, 2002), 234.1); series2.add(new Month(8, 2002), 623.7); series2.add(new Month(9, 2002), 642.5); series2.add(new Month(10, 2002), 651.4); series2.add(new Month(11, 2002), 643.5); series2.add(new Month(12, 2002), 785.6); final TimeSeriesCollection dataset = new TimeSeriesCollection(); dataset.addSeries(series1); dataset.addSeries(series2); final JFreeChart chart = createChart(dataset); 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. * // **************************************************************************** /** * Creates a new chart. * * @param dataset the dataset. * * @return The dataset. */ private JFreeChart createChart(final XYDataset dataset) { final JFreeChart chart = ChartFactory.createTimeSeriesChart("Time Series Demo 3", "Time", "Value", dataset, true, true, false); final XYPlot plot = chart.getXYPlot(); final DateAxis axis = (DateAxis) plot.getDomainAxis(); axis.setTickUnit(new DateTickUnit(DateTickUnit.MONTH, 1, new SimpleDateFormat("MMM-yyyy"))); axis.setVerticalTickLabels(true); final StandardXYItemRenderer renderer = (StandardXYItemRenderer) plot.getRenderer(); renderer.setPlotShapes(true); renderer.setSeriesShapesFilled(0, Boolean.TRUE); renderer.setSeriesShapesFilled(1, Boolean.FALSE); return chart; } /** * Starting point for the demonstration application. * * @param args ignored. */ public static void main(final String[] args) { final TimeSeriesDemo3 demo = new TimeSeriesDemo3("Time Series Demo 3"); demo.pack(); RefineryUtilities.centerFrameOnScreen(demo); demo.setVisible(true); } }