code: public void setYearNames(String[] yearNames, int context, int width) {
          if (context == FORMAT && width == ABBREVIATED) {
              shortYearNames = duplicate(yearNames);
          }
      }
docs: Sets cyclic year name strings, for example: "jia-zi", "yi-chou", etc.
  @param yearNames The new cyclic year name strings.
  @param context   The usage context: FORMAT, STANDALONE (currently only FORMAT is supported).
  @param width     The name width: WIDE, ABBREVIATED, NARROW (currently only ABBREVIATED is supported).