In case you are developing an application that is based on time zones, this example will be of help.

Lisiting 1.

import java.util.TimeZone;public class AvailableTimeZones{      public static void main(String args[])   {      AvailableTimeZones availableTimeZones = new AvailableTimeZones();      availableTimeZones.proceed();   }      private void proceed()   {      TimeZone tz = TimeZone.getDefault();            for (String availabeIDs : tz.getAvailableIDs())      {         System.out.println(availabeIDs);      }   }}