How to list java TimeZone IDs?

Source:

import java.util.TimeZone;

public class ListTimeZoneIDs {
   public static void main(String[] args) throws Exception {
      for (String id : TimeZone.getAvailableIDs()) {
         System.out.println(id);
      }
   }
}

Output:

   $ java ListTimeZoneIDs
   Etc/GMT+12
   Etc/GMT+11
   Pacific/Midway
   Pacific/Niue
   Pacific/Pago_Pago
   Pacific/Samoa
   US/Samoa
   America/Adak
   .....