Source for org.jfree.date.DateUtilities

   1: /* ========================================================================
   2:  * JCommon : a free general purpose class library for the Java(tm) platform
   3:  * ========================================================================
   4:  *
   5:  * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
   6:  * 
   7:  * Project Info:  http://www.jfree.org/jcommon/index.html
   8:  *
   9:  * This library is free software; you can redistribute it and/or modify it 
  10:  * under the terms of the GNU Lesser General Public License as published by 
  11:  * the Free Software Foundation; either version 2.1 of the License, or 
  12:  * (at your option) any later version.
  13:  *
  14:  * This library is distributed in the hope that it will be useful, but 
  15:  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
  16:  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 
  17:  * License for more details.
  18:  *
  19:  * You should have received a copy of the GNU Lesser General Public
  20:  * License along with this library; if not, write to the Free Software
  21:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, 
  22:  * USA.  
  23:  *
  24:  * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
  25:  * in the United States and other countries.]
  26:  *
  27:  * ------------------
  28:  * DateUtilities.java
  29:  * ------------------
  30:  * (C) Copyright 2002, 2003, by Object Refinery Limited.
  31:  *
  32:  * Original Author:  David Gilbert (for Object Refinery Limited);
  33:  * Contributor(s):   -;
  34:  *
  35:  * $Id: DateUtilities.java,v 1.4 2005/11/16 15:58:40 taqua Exp $
  36:  *
  37:  * Changes
  38:  * -------
  39:  * 11-Oct-2002 : Version 1 (DG);
  40:  * 03-Apr-2003 : Added clear() method call (DG)
  41:  *
  42:  */
  43: 
  44: package org.jfree.date;
  45: 
  46: import java.util.Calendar;
  47: import java.util.Date;
  48: 
  49: /**
  50:  * Some useful date methods.
  51:  *
  52:  * @author David Gilbert.
  53:  */
  54: public class DateUtilities {
  55: 
  56:     /**
  57:      * Private constructor to prevent object creation.
  58:      */
  59:     private DateUtilities() {
  60:     }
  61: 
  62:     /** A working calendar. */
  63:     private static final Calendar CALENDAR = Calendar.getInstance();
  64: 
  65:     /**
  66:      * Creates a date.
  67:      *
  68:      * @param yyyy  the year.
  69:      * @param month  the month (1 - 12).
  70:      * @param day  the day.
  71:      *
  72:      * @return a date.
  73:      */
  74:     public static synchronized Date createDate(final int yyyy, final int month, final int day) {
  75:         CALENDAR.clear();
  76:         CALENDAR.set(yyyy, month - 1, day);
  77:         return CALENDAR.getTime();
  78:     }
  79: 
  80:     /**
  81:      * Creates a date.
  82:      *
  83:      * @param yyyy  the year.
  84:      * @param month  the month (1 - 12).
  85:      * @param day  the day.
  86:      * @param hour  the hour.
  87:      * @param min  the minute.
  88:      *
  89:      * @return a date.
  90:      */
  91:     public static synchronized Date createDate(final int yyyy, final int month, final int day, final int hour, final int min) {
  92: 
  93:         CALENDAR.clear();
  94:         CALENDAR.set(yyyy, month - 1, day, hour, min);
  95:         return CALENDAR.getTime();
  96: 
  97:     }
  98: 
  99: 
 100: }