// File: LetterQueue.object_representation
// Time-stamp: "2005-12-04 21:13:39 calvanese"
// Purpose: Written exam 2/2/2005 - BSC in Production Engineering
//          LetterQueue: representation of the objects of the class

public class LetterQueue {

  // representation of the objects
  private String city;
  private String[] queue;
  private int next;

  // pubblic methods

}