Easiest/shortest way to get day of week (e.g. MON) from "dd.mm.yyyy" string?

[Sven Fischer]

Assume I have a date as a string with the pattern "dd.mm.yyyy".

What is the easiest/shortest way to get the day of week (e.g. "MON" for Monday)
from this date?

Sven

 

[jlp]

Le 21/11/2011 17:58, Sven Fischer a écrit :

Assume I have a date as a string with the pattern "dd.mm.yyyy".

What is the easiest/shortest way to get the day of week (e.g. "MON" for Monday)
from this date?

Sven

create a Calendar object with the date and Calendar.get( DAY_OF_WEEK)
return 0 for SUNDAY, 1 for MONDAY ...

 

[Andreas Leitgeb]

Assume I have a date as a string with the pattern "dd.mm.yyyy".
What is the easiest/shortest way to get the day of week (e.g. "MON" for Monday)
from this date?

Look at java.text.SimpleDateFormat (for parsing the string)
and at java.util.Calendar (for extracting the day of week)

 

[jlp]

Le 21/11/2011 18:40, jlp a écrit :

Le 21/11/2011 17:58, Sven Fischer a écrit :
create a Calendar object with the date and Calendar.get( DAY_OF_WEEK)
return 0 for SUNDAY, 1 for MONDAY ...

Sorry SUNDAY is 1, MONDAY 2 ....

 

[Mayeul]

Assume I have a date as a string with the pattern "dd.mm.yyyy".

What is the easiest/shortest way to get the day of week (e.g. "MON" for Monday)
from this date?

Sven

If you ask me the /simplest/ way to do that is with two SimpleDateFormats:
- one to parse the pattern to a Date,
- the other just to format the Date to corresponding day of the week.

Then some toUpperCase(Locale.US) to obtain MON instead of Mon.
Forcing the second SimpleDateFormat to Locale.US might be preferable.

Sounds lazy, probably quite inefficient, and is not flexible at all.
But it is a three-liners, with very short lines.

 

[Roedy Green]

Assume I have a date as a string with the pattern "dd.mm.yyyy".

What is the easiest/shortest way to get the day of week (e.g. "MON" for Monday)
from this date?

see http://mindprod.com/jgloss/calendar.html
for the usual methods.
See http://mindprod.com/products1.html#BIGDATE
for the easy way.

 

[Lew]

jlp a écrit :
Sorry SUNDAY is 1, MONDAY 2 ....

The numeric value is immaterial.