Define regex. Write java program to demonstrate the use of regex by validating email address. Email should be having following pattern a. Alphanumeric characters b. @ c. Characters d. ‘.’ e....

Define regex. Write java program to demonstrate the use of regex by validating email address. Email should be having following pattern

a. Alphanumeric characters

b. @

c. Characters

d. ‘.’

e. Characters

Example of correct emails: [email protected], [email protected], [email protected] Example of incorrect emails: [email protected], [email protected], waleedgmail.com