how can i get the date on next sunday

[vijay shanker]

hi all,

any way i can do this or i have follow all the process of setting values on the calendar object.


cheers
vijay

[Paul Sturrock]

If you are just trying to find out what the date is in n days time, you can just add n days to the current date. The Calendar class has an add method for this purpose.

[vijay shanker]

hi Paul,
i need to get the date on the coming next sunday.

[Paul Sturrock]

So...you already know the date and you just want to create a Calendar for that date? They you are right, you need to set the individual fields of your Calendar manually (using one of the set methods).

[vijay shanker]

i dont know the date of sunday paul. what i only aware is today. i have to create a date object for next sunday.

[Rob Spoor]

Use Calendar.get(Calendar.DAY_OF_WEEK) to determine what day of the week it is. Then subtract that from Calendar.SUNDAY, and add 7 if needed. Pass that number to Calendar.add:

Calendar calendar = Calendar.getInstance();
int weekday = calendar.get(Calendar.DAY_OF_WEEK);
int days = Calendar.SUNDAY - weekday;
if (days < 0)
{
    // this will usually be the case since Calendar.SUNDAY is the smallest
    days += 7;
}
calendar.add(Calendar.DAY_OF_YEAR, days);

If you want the next Sunday on a Sunday as well you should also add 7 if days == 0, making the guard "days <= 0".

[Mark Vedder]

You can also take a look at the Joda Time API which has some great methods to make date and time math a bit more straight forward than the Java date & time APIs.

[vijay shanker]

thanks Rob,

it was great i was not able to device a simple algorithm for all the day

cheers

vijay