code: public static String getDefaultExemplarLocationName(String tzID) {
          if (tzID == null || tzID.length() == 0 || LOC_EXCLUSION_PATTERN.matcher(tzID).matches()) {
              return null;
          }
  
          String location = null;
          int sep = tzID.lastIndexOf('/');
          if (sep > 0 && sep + 1 < tzID.length()) {
              location = tzID.substring(sep + 1).replace('_', ' ');
          }
  
          return location;
      }
docs: Default exemplar location name based on time zone ID.
  For example, "America/New_York" -> "New York"
  @param tzID the time zone ID
  @return the exemplar location name or null if location is not available.