class StringUtil implements Serializable {

	public boolean validateEmail(String emailAddress) {
		if (emailAddress == null || emailAddress.trim().length() > 128) {
			return false;
		}
		emailAddress = emailAddress.trim();
		String expression = "^[\\w]([\\-\\.\\w])+[\\w]+@[\\w]+[\\w\\-]+[\\w]*\\.([\\w]+[\\w\\-]+[\\w]*(\\.[a-z][a-z|0-9]*)?)$";
		return regExPatternMatch(expression, emailAddress);

	}

	public  StringUtil();

}