Java Day in Month firstDayOfMonth(int commonMonthIndx, int iyear)

Description

first Day Of Month

License

Open Source License

Declaration

public static int firstDayOfMonth(int commonMonthIndx, int iyear) 

Method Source Code

//package com.java2s;
/* ***** BEGIN LICENSE BLOCK *****
 *
 * Copyright (c) 2001-2014, Kevin Sven Berg
 * All rights reserved./*  ww  w.j  a  v a  2 s  .  c  o  m*/
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the <organization> nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * ***** END LICENSE BLOCK ***** */

public class Main {
    protected static final int[] FirstDayOfMonth = { 1, 32, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335 };

    public static int firstDayOfMonth(int commonMonthIndx, int iyear) {
        return ((commonMonthIndx > 2) ? leapYearBalance(iyear) : 0) + FirstDayOfMonth[commonMonthIndx - 1];
    }

    /**
     * Answer 1 if the year yearInteger is a leap year or 0 if it is not
     *
     * @param yearInteger int year
     */
    public static int leapYearBalance(int yearInteger) {
        int adjustedYear = (yearInteger > 0) ? yearInteger : -(yearInteger + 1);
        if (((adjustedYear % 4) != 0) || (((adjustedYear % 100) == 0) && ((adjustedYear % 400) != 0)))
            return 0;
        return 1;
    }
}

Related

1. daysInMonth(int month, int year)
2. daysInMonth(int year, int month)
3. daysOfMonth(int year)
4. daysOfMonth(int year, int month)
5. firstDayOfLastMonth()
6. firstDayOfMonth(int year, int month, String dateFormat)
7. firstDayOfNextMonth(String dateFormat)
8. getCountDayForMonth(int year, int month)
9. GetDay(int month)