How to get date of first Wednesday of month java calendar

Question

How to get date of first Wednesday of month java calendar

How can I get the date of the next first Wednesday of the month using the java. Calendar class. For example:

Today(24/03/2012) the next first Wednesday will be 04/04/2012
On(05/04/2012) the next first Wednesday will be 02/05/2012

thank.

+3

java calendar

user667430 24 Mar 12 at 18:34

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6 answers

Adam · Answer 1 · 2012-03-24T18:42:19+0000

It works

set start date
go to next month
transition to the first day of the month
add the days until we get to wednesday.

code

import static java.util.Calendar.*;

public static void main(String[] args) {
    System.out.println(getNextMonthFirstWed(new Date(112, 3 - 1, 24)));
    System.out.println(getNextMonthFirstWed(new Date(112, 4 - 1, 05)));
}

private static Date getNextMonthFirstWed(Date date) {
    Calendar c = getInstance();
    c.setTime(date);
    c.add(MONTH, 1);
    c.set(DAY_OF_MONTH, 1);

    // search until wednesday
    while (c.get(DAY_OF_WEEK) != WEDNESDAY) {
        c.add(DAY_OF_MONTH, 1);
    }
    return c.getTime();
}

KayV · Answer 2 · 2016-12-06T09:59:03+0000

In Java 8 and later, we can use the java.time classes including LocalDate

and TemporalAdjusters

and DayOfWeek

enumeration. See Tutorial .

LocalDate firstSundayOfNextMonth = LocalDate
              .now()
              .with( TemporalAdjusters.firstDayOfNextMonth() )
              .with( TemporalAdjusters.nextOrSame(DayOfWeek.SUNDAY) );

Boris Strandjev · Answer 3 · 2012-03-24T18:44:34+0000

Perhaps you need this code:

    Calendar calendar = Calendar.getInstance();
    while (calendar.get(Calendar.DAY_OF_MONTH) > 7 ||
            calendar.get(Calendar.DAY_OF_WEEK) != Calendar.WEDNESDAY) {
        calendar.add(Calendar.DAY_OF_MONTH, 1);
    }
    SimpleDateFormat gm = new SimpleDateFormat("MMM yyyy dd");
    System.out.println(gm.format(new Date(calendar.getTimeInMillis())));

Exit to date: Apr 2012 04

. For the Apr 2012 04

output is Apr 2012 04

. For the Apr 2012 05

exit May 2012 02

.

Zackary hall · Answer 4 · 2016-09-27T14:56:04+0000

This code will answer your question by providing a little more functionality. Using this you can specify a specific business day and it will return the first occurrence of the specified weekday in the next month. It also avoids looping and checking each day until you find the right one. I converted this from some groovy code that I am currently working with. Hope this helps!

private static Date getNextMonthFirstWeekDayOccurence(Date date, int weekDay) {
            //Get Calendar and move it to the first day of the next month
            Calendar calendar = Calendar.getInstance();
            calendar.setTime(date);
            calendar.set(Calendar.MONTH, calendar.get(Calendar.MONTH) + 1);
            calendar.set(Calendar.DAY_OF_MONTH, 1);

            //Calculate the difference between the days of the week
            int dayDifference = calendar.get(Calendar.DAY_OF_WEEK) - weekDay;

            if (dayDifference < 0) { //Implies (calendar.get(Calendar.DAY_OF_WEEK) < weekDay)
                calendar.add(Calendar.DAY_OF_MONTH, Math.abs(dayDifference));
            } else if (dayDifference > 0) { //Implies (calendar.get(Calendar.DAY_OF_WEEK) > weekDay)
                def daysToAdd = calendar.get(Calendar.DAY_OF_WEEK) - dayDifference;
                calendar.add(Calendar.DAY_OF_MONTH, daysToAdd);
            }
            return calendar.getTime();
    }

nansen · Answer 5 · 2012-03-24T18:52:46+0000

Or Joda version:

private static DateTime nextFirstWednesday(DateTime dateTime) {
    while (dateTime.getDayOfMonth() > 7 || dateTime.getDayOfWeek() != DateTimeConstants.WEDNESDAY) {
        dateTime = dateTime.plusDays(1);
    }
    return dateTime;
}

Sridhar Iyer · Answer 6 · 2014-04-16T02:45:50+0000

public boolean firstWednesdayOfTheMonth() {
        // gets todays date
        Calendar calendar = Calendar.getInstance();
        // get the date
        int date = calendar.get(Calendar.DAY_OF_MONTH);
        // get the day of the week SUNDAY == 1, MONDAY == 2 ....
        int day =   calendar.get(Calendar.DAY_OF_WEEK); 
        // this checks if its a wednesday and the date falls within 8 then it should be the first wednesday
        if (date < 8 &&  day == 4) {
                return true;
        }

            return false;   
    }

How to get date of first Wednesday of month java calendar

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