001/* ========================================================================
002 * JCommon : a free general purpose class library for the Java(tm) platform
003 * ========================================================================
004 *
005 * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
006 * 
007 * Project Info:  http://www.jfree.org/jcommon/index.html
008 *
009 * This library is free software; you can redistribute it and/or modify it 
010 * under the terms of the GNU Lesser General Public License as published by 
011 * the Free Software Foundation; either version 2.1 of the License, or 
012 * (at your option) any later version.
013 *
014 * This library is distributed in the hope that it will be useful, but 
015 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
016 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 
017 * License for more details.
018 *
019 * You should have received a copy of the GNU Lesser General Public
020 * License along with this library; if not, write to the Free Software
021 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, 
022 * USA.  
023 *
024 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
025 * in the United States and other countries.]
026 *
027 * ------------------
028 * DateUtilities.java
029 * ------------------
030 * (C) Copyright 2002, 2003, by Object Refinery Limited.
031 *
032 * Original Author:  David Gilbert (for Object Refinery Limited);
033 * Contributor(s):   -;
034 *
035 * $Id: DateUtilities.java,v 1.4 2005/11/16 15:58:40 taqua Exp $
036 *
037 * Changes
038 * -------
039 * 11-Oct-2002 : Version 1 (DG);
040 * 03-Apr-2003 : Added clear() method call (DG)
041 *
042 */
043
044package org.jfree.date;
045
046import java.util.Calendar;
047import java.util.Date;
048
049/**
050 * Some useful date methods.
051 *
052 * @author David Gilbert.
053 */
054public class DateUtilities {
055
056    /**
057     * Private constructor to prevent object creation.
058     */
059    private DateUtilities() {
060    }
061
062    /** A working calendar. */
063    private static final Calendar CALENDAR = Calendar.getInstance();
064
065    /**
066     * Creates a date.
067     *
068     * @param yyyy  the year.
069     * @param month  the month (1 - 12).
070     * @param day  the day.
071     *
072     * @return a date.
073     */
074    public static synchronized Date createDate(final int yyyy, final int month, final int day) {
075        CALENDAR.clear();
076        CALENDAR.set(yyyy, month - 1, day);
077        return CALENDAR.getTime();
078    }
079
080    /**
081     * Creates a date.
082     *
083     * @param yyyy  the year.
084     * @param month  the month (1 - 12).
085     * @param day  the day.
086     * @param hour  the hour.
087     * @param min  the minute.
088     *
089     * @return a date.
090     */
091    public static synchronized Date createDate(final int yyyy, final int month, final int day, final int hour, final int min) {
092
093        CALENDAR.clear();
094        CALENDAR.set(yyyy, month - 1, day, hour, min);
095        return CALENDAR.getTime();
096
097    }
098
099
100}