Write a Regular expression to validate email address

^[a-zA – Z0 – 9. _%+-]+@[a-zA – Z0-9 . _%+-]+\.[a-zA-Z]{2,4}$

In the above example:

• the sequence ^[a-zA – Z0 – 9. _%+-] matches letters,digits,underscores,%,+ and -.
• The + (plus) sign after the 1st sequence means the string must include one or more of those characters
• Next the pattern matches @
• Then the pattern matches another letter one or more times followed by a . and then between two to four letters