CODEWITHSUNDEEP
javaregexjunit
MeanwhileInHell
MeanwhileInHell

Reputation: 7053

RegEx matching in JUnit for time zone

So I'm trying to verify the time zone section of a dateTime using a regex just for the "GMT" or "UTC" section. A valid String looks like:

"Wed, 8 Feb 2016 11:20:00 [GMT]"

I've tried the following but its not working. I've tried a bunch of different escape sequences but to no avail.

assertTrue(dateTime.getDateTime().matches("Wed, 8 Feb 2016 11:20:00 [\\w{3}]"));

I think the problem I'm having is due to the square brackets that I need being treated as part of the regEx.

Upvotes: 0

Views: 226

Answers (1)

Pavneet_Singh
Pavneet_Singh

Reputation: 37404

You need to escape the [] because [] represents a list which is used to find the match so use it like Wed, 8 Feb 2016 11:20:00 \\[\\w{3}\\]

\\[\\w{3}\\]

\\[: match [ character

\\w{3} : match 3 times \\w ,\\w mean [a-zA-Z0-9_]

\\] : match ] character

    String date= "Wed, 8 Feb 2016 11:20:00 [GMT]";
    System.out.println(date.matches("Wed, 8 Feb 2016 11:20:00 \\[\\w{3}\\]"));

Oracle Regex Character Classes

Upvotes: 3

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