Java Day of getDeltaDays(String date)

Description

get Delta Days

License

Open Source License

Declaration

public static long getDeltaDays(String date) 

Method Source Code

//package com.java2s;
/*//from   w w  w .j  a  v a 2s  .  c o  m
 *  DateUtil.java
 *  Copyright (C) 2011 Dale Furrow
 *  dkfurrow@google.com
 *
 *  This program 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 3
 *  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 Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public License
 *  along with this program; if not, a copy may be found at
 *  http://www.gnu.org/licenses/lgpl.html
 */

import java.text.SimpleDateFormat;

import java.util.Date;

public class Main {
    private static SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
    private static final long MILLI_SEC_PER_DAY = 1000 * 60 * 60 * 24;

    public static long getDeltaDays(String date) {
        long deltaDays = 0;

        try {
            Date d = sdf.parse(date);
            deltaDays = (d.getTime() - getCurrentTime()) / MILLI_SEC_PER_DAY;
        } catch (Throwable t) {
            System.out.println(" [Error] Problem parsing date: " + date + ", Exception: " + t.getMessage());
        }
        return deltaDays;
    }

    public static long getCurrentTime() {
        return System.currentTimeMillis();
    }
}

Related

1. getCurDayZero()
2. getDataFile(int tableId, Date day)
3. getDataTimeForwordDay(Date date, int dayNum)
4. getDefaultOffsetDays(String strDate)
5. getDeltaDay(String day, int delta)
6. getDeltaNow(int deltaDays)
7. getDisplayDate(final Date date, final int offsetDays)
8. getEndDayofMouth(String date, String inPattern, String outPattern)
9. getFirstDay(boolean isNeedHH24MISS)