Fastest string utility is java library (JAR ) for string operation . This library is very easy to use, very fast and very efficient in string operations such as split, toUpperCase, toLowerCase, replace, delete, regularexpression and others.
One java-based RegularExpression Engine.
Support the Matching Text with Nested Parentheses or any other Nested characters. (e.g. (), {}, [], <>, etc).
More functions in the future.