Here you can find the source of DateToString(Date Expression)
public static String DateToString(Date Expression)
//package com.java2s; /**// w w w . jav a 2 s. c o m * Copyright (c) 2001-2002. Department of Family Medicine, McMaster University. All Rights Reserved. * This software is published under the GPL GNU General Public License. * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * * This software was written for the * Department of Family Medicine * McMaster University * Hamilton * Ontario, Canada */ import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; import java.util.Locale; public class Main { private static String defaultPattern = "yyyy/MM/dd"; private static Locale locale = Locale.CANADA; public static String DateToString(Date Expression) { return DateToString(Expression, defaultPattern); } public static String DateToString(Calendar Expression) { if (Expression == null) return DateToString(null, defaultPattern); return DateToString(Expression.getTime(), defaultPattern); } public static String DateToString(Date Expression, String pattern) { if (Expression != null) { SimpleDateFormat df = new SimpleDateFormat(pattern, locale); return df.format(Expression); } else { return ""; } } public static String DateToString(Date Expression, String pattern, Locale locale2) { if (Expression != null) { SimpleDateFormat df = new SimpleDateFormat(pattern, locale2); return df.format(Expression); } else { return ""; } } }