code: public static int println(int priority, String tag, String msg) {
          return println_native(LOG_ID_MAIN, priority, tag, msg);
      }
docs: Low-level logging call.
  @param priority The priority/type of this log message
  @param tag Used to identify the source of a log message.  It usually identifies
  the class or activity where the log call occurs.
  @param msg The message you would like logged.
  @return The number of bytes written.