code: public void setUCS2Level(int level) throws ConfigException {
          if (level != 1 && level != 2 && level != 3) {
              throw new ConfigException(this, "Invalid UCS-2 level: " + level);
          }
          this.ucs2_level = level;
      }
docs: Set UCS-2 Level
  
  @param level 1, 2 or 3
  
  @throws ConfigException Invalid UCS-2 level
  @see http://www.nada.kth.se/i18n/ucs/unicode-iso10646-oview.html