TestEnum.java

class TestEnum {

   void travel(Transport transport, Location location) {
      System.out.println("You took a " + transport + " to " + location);

      // All the enum benifits of C++ can be achieved here
      // with stronger type checking.
      // Encapsulisation is good. outside world only need to know the names

      // disadvantage: switch statwment is not allowed here
      
      if (transport == Transport.STEAMBOAT)
         ;  // do someing with steam boat
      else if (transport ==  Transport.JETPLANE)
         ;  // do someing with jet plane
      else if (transport ==  Transport.RACECAR)
         ;  // do someing with race car
      else if (transport == Transport.FLYINGSAUCER)
         ;  // do someing with flying saucer

   }

   public static void main(String[] args) {

      TestEnum testEnum = new TestEnum();

      testEnum.travel(Transport.STEAMBOAT,   Location.NEWORLEANS);
      testEnum.travel(Transport.JETPLANE,    Location.LOSANGELES);
      testEnum.travel(Transport.RACECAR,     Location.MEMORYLANE);
      testEnum.travel(Transport.FLYINGSAUCER,Location.ROSWELLNM);
   }
}

// Using final to avoid inheritance and overriding
// declare it public and put it into a seperated file
// if it is used in more packages
final class Location {
   private String sLocation;

   // private constructor to avoid outside instantiation
   private Location(String sLocation) {
      this.sLocation = sLocation;
   }

   // You can add more methods here to make the class normal
   public String toString() {return sLocation;}
   // more methods here.......

   // All discrete values allowed listed here, no interger euivalent exists
   // Strong type checking guaranteed
   public  static Location ROSWELLNM  = new Location("Roswell, New Mexico");
   public  static Location MEMORYLANE = new Location("Memory Lane");
   public  static Location NEWORLEANS = new Location("New Orleans");
   public  static Location LOSANGELES = new Location("Los Angeles");
}

final class Transport {
   private String sTransport;

   private Transport(String sTransport) {
      this.sTransport = sTransport;
   }

   public String toString() {return sTransport;}

   public static  Transport JETPLANE     = new Transport("jet plane");
   public static  Transport STEAMBOAT    = new Transport("steam boat");
   public static  Transport RACECAR      = new Transport("race car");
   public static  Transport FLYINGSAUCER = new Transport("flying saucer");
}

Discussion:

Some Disadvantage: