Regex in Java

Hi Guru’s,

I need a regular expression in Java for the following cases should satisfy.
Token match is my requirement. Token should at least surrounded by a space. If there is no space before/after/both then it should return false.

My Token is RAGAV, so following condition should satisify

Case -1 : RAGAV --> Matcher should return–> True
Case -2 : ABCRAGAVXYZ --> Matcher should return–> False
Case -3 : ABC RAGAV --> Matcher should return–> True
Case -4 : ABCRAGAV XYZ --> Matcher should return–> True
Case -5: ABC RAGAV XYZ --> Matcher should return–> True

Here i gave an example. Need Regex to satisfy all above condition generic cases. Token can be anything in the Database.

Regards,
Ragav

The best way to learn this is to just start hacking away, and refining your regex.
Java regex tester
Messing around with a tester and developing patterns goes a long way.

Try building a regex that validates telephone numbers as an exercise.

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