Email Validation Function

public boolean validateEmail(String email) {

Pattern pattern;

Matcher matcher;

String EMAIL_PATTERN = "^[_A-Za-z0-9-]+(\\.[_A-Za-z0-9-]+)*@[A-Za-z0-9]+(\\.[A-Za-z0-9]+)*(\\.[A-Za-z]{2,})$";

pattern = Pattern.compile(EMAIL_PATTERN);

matcher = pattern.matcher(email);

return matcher.matches();

}