date format

[naga raaju]

hi
i gave the date format like this

2008-05-02 i need the day of week means 2may day is "friday" so its order is 6

how to get like this in java.

i use calender.get(Calendar.DAY_OF_WEEK); but not working.

any ide

bye
naga

[Rob Spoor]

Why is it not working? How have you created the Calendar object you're getting the weekday from?

Also, don't assume weekdays are 1-based or 0-based. Instead, use the constants to convert:

int weekday = calendar.get(Calendar.DAY_OF_WEEK) - Calendar.SUNDAY + 1;

Since Calendar.SUNDAY is guaranteed to be the lowest of these values (by the API), subtracting it from the weekday will guarantee a 0-based weekday.

It's even better to just always compare with the constants like Calendar.FRIDAY. The only reason you'd want to use the above approach is when using the day index as array indexes, where you want absolute guarantees that it is 0-based.

Please be careful though when using DateFormatSymbols. The arrays it returns will only work with the constants; there are often empty values at index 0 if the constants start at 1.

[naga raaju]

sorry not working that code

[Vikas Kapoor]

Originally posted by naga raaju:
...
i use calender.get(Calendar.DAY_OF_WEEK); but not working...

calender should have been instantiated in this way.It's an abstract class.

Calendar c = Calendar.getInstance();
System.out.println(c.get(Calendar.DAY_OF_WEEK));

This will give you 6 as output.
[ May 02, 2008: Message edited by: Vishal Pandya ]