Java Month of Year getStartAndEndOfMonth(int month, int year)

Description

get Start And End Of Month

License

Open Source License

Declaration

public static Calendar[] getStartAndEndOfMonth(int month, int year) 

Method Source Code

//package com.java2s;
/*/* w  w  w  .  j a  v a  2s .  c  o m*/
 * Copyright (C) 2007-2010 Castafiore
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Affero 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;

public class Main {
    public static Calendar[] getStartAndEndOfMonth(int month, int year) {
        Calendar startDate = Calendar.getInstance();
        startDate.set(year, month, 1, 0, 0);
        Calendar endDate = Calendar.getInstance();
        int days = getDaysInMonth(month, year);
        endDate.set(year, month, days, 23, 59);

        return new Calendar[] { startDate, endDate };
    }

    public static int getDaysInMonth(int month, int year) {
        if (month == 0) {
            return 31;
        } else if (month == 1) {
            if (isLeapYear(year)) {
                return 29;
            } else {
                return 28;
            }
        } else if (month == 2) {
            return 31;
        } else if (month == 3) {
            return 30;
        } else if (month == 4) {
            return 31;
        } else if (month == 5) {
            return 30;
        } else if (month == 6) {
            return 31;
        } else if (month == 7) {
            return 31;
        } else if (month == 8) {
            return 30;
        } else if (month == 9) {
            return 31;
        } else if (month == 10) {
            return 30;
        } else if (month == 11) {
            return 31;
        }
        return -1;
    }

    public static boolean isLeapYear(int year) {
        return (year % 4 == 0);
    }
}

Related

1. getPreviousDateStringByMonth(int months)
2. getPreviousDay(int year, int month, int day, int days)
3. getPrevMonth(String divisionDate, int day, String outputFormat)
4. getPreYearMonth()
5. getSecondsOfMonth(int year, int month)
6. getStrDayOfWeek(int _year, int _month, int _day)
7. getThisMonth(int year, int monthIndex)
8. getTime(int year, int month, int day)
9. getTimeByYMD(int year, int month, int day)