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

Description

get Nr Days Of Month

License

Apache License

Declaration

public static int getNrDaysOfMonth(int month, int year) 

Method Source Code

//package com.java2s;
/*//from   ww  w  .  ja  v  a2 s. c o m
 * Licensed to The Apereo Foundation under one or more contributor license
 * agreements. See the NOTICE file distributed with this work for
 * additional information regarding copyright ownership.
 *
 * The Apereo Foundation licenses this file to you 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.Calendar;

import java.util.Locale;

public class Main {
    public static int getNrDaysOfMonth(int month, int year) {
        Calendar cal = calendarForFirstDayOf(month, year);
        return cal.getActualMaximum(Calendar.DAY_OF_MONTH);
    }

    private static Calendar calendarForFirstDayOf(int month, int year) {
        return (calendarFor(1, month, year));
    }

    private static Calendar calendarFor(int day, int month, int year) {
        Calendar cal = Calendar.getInstance(Locale.US);
        cal.set(calculateActualYear(month, year), (month < 0 ? (12 + (month % 12)) : month % 12), day);
        return (cal);
    }

    public static int calculateActualYear(int month, int year) {
        return (year + (month < 0 ? (month / 12) - 1 : month >= 12 ? (month / 12) : 0));
    }
}

Related

1. getNextMonth(Date nowdate, int delay)
2. getNextMonthFirstDay(String date)
3. getNextMonthFirstDay(T day)
4. getNextMonthFistDay(String nowdate, String inFormat, String outFormat)
5. getNextYearMonth(String yearMonth)
6. getNumberOfDays(int year, int month)
7. getOntologyURIBase(String defaultBase, boolean appendYear, boolean appendMonth, boolean appendDay)
8. getPreviousDateStringByMonth(int months)
9. getPreviousDay(int year, int month, int day, int days)