Java Month Calculate getMonthsOfAge(Date birth, Date now)

Description

get Months Of Age

License

Open Source License

Declaration

public static int getMonthsOfAge(Date birth, Date now) 

Method Source Code

//package com.java2s;
/*/*from  ww w .j  av  a2 s . co  m*/
 * #%L
 * Webstar Newsletter
 * %%
 * Copyright (C) 2013 Webstar Csoport Kft.
 * %%
 * 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/gpl-3.0.html>.
 * #L%
 */

import java.util.*;

public class Main {

    public static int getMonthsOfAge(Date birth, Date now) {
        Calendar nowCalendar = new GregorianCalendar();
        Calendar birthCalendar = new GregorianCalendar();
        birthCalendar.setTime(birth);
        nowCalendar.setTime(now);
        if (nowCalendar.getTimeInMillis() > birthCalendar.getTimeInMillis()) {
            int months = nowCalendar.get(Calendar.MONTH) - birthCalendar.get(Calendar.MONTH);
            int yearDiff = nowCalendar.get(Calendar.YEAR) - birthCalendar.get(Calendar.YEAR);
            if (yearDiff > 0) {
                months = yearDiff * 12 + months;
            }
            if (nowCalendar.get(Calendar.DAY_OF_MONTH) < birthCalendar.get(Calendar.DAY_OF_MONTH)) {
                months--;
            }
            return months;
        } else {
            return 0;
        }
    }
}

Related

1. getLastMonthBegin()
2. getMonthFormat(String date)
3. getMonthlyIntervals(Date start, Date end)
4. getMonthNumber()
5. getMonthsMap()
6. getMonthSpan(Date begin, Date end)
7. getNextMonth(long date)
8. getNextMonthExtention(Date dt, Long n)
9. getNowMonth()