app/features/email/EmailUtil.java
/**
     * Validate hex with regular expression
     *
     * @param email - hex for validation
     * @return true valid hex, false invalid hex
     */
Validate hex with regular expression
@param email - hex for validation
@return true valid hex, false invalid hex
Validate hex with regular expression @param email - hex for validation @return true valid hex false invalid hex
public boolean validate(final String email) {
        Matcher matcher = pattern.matcher(email);
        return matcher.matches();
    }
public boolean validate ( final String email ) { Matcher matcher = pattern . matcher ( email ) ; return matcher . matches ( ) ; }
Validate hex with regular expression
 @param email - hex for validation
 @return true valid hex, false invalid hex
Validate hex with regular expression @param email - hex for validation @return true valid hex false invalid hex