Regular expression for validating email address
If (like me when I first saw this) you AREN’T experienced at Regex, it takes a while to parse. The local string (the part of the email address that comes before the @) can contain any of these characters: is a valid email address. For this reason, for a time I began running any email address against the following regular expression instead: Simple, right? This is often the most I do and, when paired with a confirmation field for the email address on your registration form, can alleviate most problems with user error. They can get ridiculously convoluted as in the case above and, according to the specification, are often too strict anyway.Email Address in Java can be validated by using Regular Expressions by providing the appropriate pattern. For this, the Pattern and Matcher classes are used that are present in the regex; package. The format for a valid Email Address is as follows: Lets breakdown the above expression to understand it 1. ^.-] Here ^ – Indicates start of the string where the characters can be anywhere between a-z A-Z digits 0-9 and some allowed special symbols like ‘_’ ‘#’ ‘? Email3 contains a ‘.’ character after the ‘@’ symbol which is not in a valid format.
Visit Stack Exchange I need to validate whether my regex is correct for below scenario.
The argument to this method is the email address you want to validate.
In the method body we define a variable (’email Pattern’) and assign a regular expression to it.
$ – End of the String Now let’s have a look at the program.
– Matches the preceded characters at least 2 times but not more than 7 times i.e length of top level domain.