Using regex verify the email id is valid or not

Code snippet to verify the provided string is in email format or not and returns back the boolean value.

 

public static boolean isEmail(String email) {
        Pattern pattern = Pattern
                .compile("^([a-zA-Z0-9_\\-\\.]+)@((\\[[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.)|(([a-zA-Z0-9\\-]+\\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\\]?)$");
        Matcher matcher = pattern.matcher(email);
        return matcher.matches();
    }