Return the number if days between two dates - Android java.util

Android examples for java.util:Date Compare

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Description

Return the number if days between two dates

Demo Code

/*//  w w  w.j  av a2  s.  co  m
 * Copyright (C) 2012-2013 Dominik Sch?rmann <dominik@dominikschuermann.de>
 *
 * 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 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
import java.util.Calendar;
import java.util.GregorianCalendar;
import java.util.Iterator;
import java.util.Set;
import android.os.Bundle;

public class Main{
    /**
     * Return the number if days between two dates
     * 
     * @param first
     * @param second
     * @return number of days
     */
    public static long getNumDaysBetween(GregorianCalendar first,
            GregorianCalendar second) {
        GregorianCalendar tmp = new GregorianCalendar();
        tmp.setTime(first.getTime());
        long numDays = (second.getTimeInMillis() - first.getTimeInMillis()) / 1000 / 86400;
        tmp.add(Calendar.DAY_OF_MONTH, (int) numDays);
        while (tmp.before(second)) {
            tmp.add(Calendar.DAY_OF_MONTH, 1);
            ++numDays;
        }
        return numDays;
    }
}

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