Code for validating email in java

There may be more usecase but that’s not point of discussion here. validating email address in java using regular expressions.

code for validating email in java-7code for validating email in java-30code for validating email in java-83code for validating email in java-68

In the last post, I explained about java regular expression in detail with some examples. If we want to restrict user to enter only specific top level domains like , .Only email id containing (com , org )tld are valid .The following conditions may be applied for validating email. Alphanumeric Characters ( i.e Uppercase letters (A-Z) , Lowercase Letters ( a–z), Digits (0-9) ) 2. in ,org, com) The following Pattern may be used for validating the E-Mail Address. \w is predefined character class for a word character: [a-z A-Z_0-9] 1. \.)) -If the next character is a dot (.), matches it. //For Better understanding of the above Pattern , we can split into various parts in order. [\w] -The first character of the Email matches any alphabetic character from a to z or A to Z or any numeric character from 0 to 9. If it is not a dot, looks for next character and continue the match. \.) ensures, there should not be two or more dot (.) consecutively 3.

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