java PatternʹÓÃ

    public static boolean isCheckN(String pInput) {
        String regEx = "^[0-9]+$";
        Pattern p = Pattern.compile(regEx);
        Matcher m = p.matcher(pInput);
        return m.find();
    }
 public static boolean isCheckE(String pInput)
 {
  if (!pInput.equals("")){
    if (!Pattern.matches("XXXX",pInput)){
     return false;
    }
  }
  return true;
 }