public class Client {

   public static void main (String[] args){
      FunListFW adam =  EmptyFW.Singleton ();
      FunListFW julie = new ConsFW (new Integer (5), adam);
      IFunAlgo derek =  SumAlgo.Singleton ();
      IFunAlgo mike  = GetNth.Singleton ();
      System.out.println ("Sum is " + julie.execute (derek, null));
      System.out.println ("Oth element is " + julie.execute (mike, new Integer (0)));
      try {
         System.out.println ("Press Enter to quit...");
         System.in.read ();
      }
      catch (Exception e){
      }
   }
}