How to get the given date string format(pattern) in java?

Question

I want to get the format of a given date string.

Example: I have a string like 2011-09-27T07:04:21.97-05:00 and the date format of this string is

Answer 1

Madhu's code is can workout, but some performance problem will arise because every failure case will raise the exception. i think we need to find the reguler expression solution to find the pattern form the given date String.

you can find all most all reg expressions to date and time format in the following link

http://regexlib.com/DisplayPatterns.aspx?cattabindex=4&categoryId=5&AspxAutoDetectCookieSupport=1