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Java Regular Expressions in Java

Tahir Imran
Tahir Imran
9,346 Points
Posted by Tahir Imran
Tahir Imran
9,346 Points

Universal date regex

Hi i have a date of a format d/mm/yyyy example(1/11/2016), so the date format may vary depending on the date example if the date is 25/7/2016 then the format is dd/m/yyyy could you please let me know what can be the best way to achieve this regex. I tried the one which someone else had mentioned in the questions related questions but that didnt work. Thanks.

dman10345
dman10345
7,109 Points

well a simple regex would be something like "^\d{1}-\d{2}-\d{4}" and you could modify it to the couple cases you wish to receive like "^\d{2}-\d{1}-\d{4}" and use a or (||) logical expression

1 Answer

jcorum
jcorum
71,830 Points
jcorum
jcorum
71,830 Points

Tahir, I suggest you go to the Regex Library (http://www.regxlib.com/Search.aspx?k=date). At present there are 754 regex expressions for dates. I'm guessing someone else has already written one that will accept the dates you need: those with days and months with either 1 or 2 digits each. The description for each expression listed almost always gives examples of the dates that will pass and those that will fail.