public boolean checkEmail(String email){

if (email !=null || email.length()>0){

? Pattern pattern = Pattern.compile("^[A-Z0-9._%+-]+@[A-Z0-9.-]+\\.[A-Z]{2,6}$", Pattern.CASE_INSENSITIVE);

Matcher matcher = pattern.matcher(email);

return matcher.find();

}

return false;

}