Java Date Between daysBetweenCalendars(Calendar date1, Calendar date2)

Description

days Between Calendars

License

Apache License

Return

the amount of days between one date and second

Declaration

public static long daysBetweenCalendars(Calendar date1, Calendar date2) 

Method Source Code

//package com.java2s;
/*//from   w  ww.ja  v  a2s. c  o m
* Copyright 2009-2011 Telkku.com
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

import java.util.*;

public class Main {
    /**
     * @return the amount of days between one date and second
     * */
    public static long daysBetweenCalendars(Calendar date1, Calendar date2) {
        long d1 = getDaysFromYearZero(date1);
        long d2 = getDaysFromYearZero(date2);

        return d2 - d1;
    }

    /**
     * @return the amount of days that have passed since the year zero and the given date
     * */
    public static long getDaysFromYearZero(Calendar date) {
        return ((date.get(Calendar.YEAR) * 365) - 365) + date.get(Calendar.DAY_OF_YEAR);
    }
}

Related

1. daysBetween(String from, String to, String format)
2. daysBetween(String from, String to, String format)
3. daysBetween(String smdate, String bdate)
4. daysBetween2Dates(Date d1, Date d2)
5. daysBetween2Dates(Date startDate, Date endDate)
6. daysBetweenDate(Integer startDate, Integer endDate)
7. daysBetweenDates(Date beginDate, Date endDate)
8. daysBetweenMidnight(final Date startDate, final Date endDate)
9. getBetweenDate(Date startDate, Date endDate)