Java tutorial
//package com.java2s; /* * Copyright (C) 2003-2009 JNode.org * 2009,2010 Matthias Treydte <mt@waldheinz.de> * * 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., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ import java.util.Calendar; public class Main { /** * Encode a java date/time into a 16-bit encoded DOS date * * @param javaDateTime * @return long */ public static int encodeDate(long javaDateTime) { Calendar cal = Calendar.getInstance(); cal.setTimeInMillis(javaDateTime); return 512 * (cal.get(Calendar.YEAR) - 1980) + 32 * (cal.get(Calendar.MONTH) + 1) + cal.get(Calendar.DATE); } }