public static String generateNativeGuid(String deviceType,String serialNumber){
  return String.format("%s+%s",_deviceTypeMap.get(deviceType),serialNumber);
}

public static String generateNativeGuid ( String deviceType , String serialNumber ) { return String . format ( "%s+%s" , _deviceTypeMap . get ( deviceType ) , serialNumber ) ; }
the format of this native guid using the given devicetype & serialnumber .
