Regex

What are the needs of programmer?
May be what we want is Today's need:
1) Too much in too less!
2) Optimization.

This is possible when we are doing coding for String processing.
"REGEX" this is word which is our solution.
This is the advanced tool for String/Text processing.
REGEX: Regular Expression
For REGEX Java has provided the APIs in a package java.util.regex.
In Javadoc the various methods are given for processing of String using Regex.