Email Format Validation in Apex


Apex provides patterns and matchers that enable you to search text using regular expressions.
And you can use that to validated, if the entered email address is valid or not in apex using the below code.Give a try!

 Code:

 Pattern p = Pattern.compile( '([a-zA-Z0-9_\\-\\.]+)@(((\\[a-z]{1,3}\\.[a-z]{1,3}\\.[a-z]{1,3}\\.)|(([a-zA-Z0-9\\-]+\\.)+))([a-zA-Z]{2,4}|[0-9]{1,3}))');
         Matcher m = p.matcher(leadVar.Email);
         if (!m.matches()) {
            System.debug('Please enter a valid email address');
                    return null;
         }

 Ref:
https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_classes_pattern_and_matcher_using.htm
https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_classes_pattern_and_matcher_pattern_methods.htm
P.S: Comment Below for any Clarification or help!!
Happy working!! :) :)

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