Remove all Non-alphanumeric in a String via Regular Expression

Remove all Non-alphanumeric in a String via Regular Expression

I had a need to remove all special characters in a string.

Regular expressions saved the day:

validation_string = string1.replaceAll("\W|_","",false);

Ref: http://stackoverflow.com/questions/3114027/regex-expressions-for-all-non-alphanumeric-symbols

Cheers,
John Whitney