email address are the means of communication with people around the world. While processing forms email address validation plays an important.

This regular expression will check for valid Internet Protocol (IP) address. Here we are going to search four decimal numbers groups, each separated by a dot. each set contains zero to three digits.

In the United States, a Social Security number (abbreviated as SSN) is a nine-digit number issued to U.S. citizens, permanent residents, and temporary (working) residents. U.S. social security numbers are three sets of digits separated by hyphens

When we go for shopping online, we purchase any item say CD, Books and place order. To ship our order company ask for our billing as well as shipping address. If we going to gift that item to anyone then both addresses will be different else will same.

This is a very basic contact form which can be used for any kind of website

SmtpMail class example to send emails from web