Source of SocketMessengerConstants.java


  1: // Fig. 24.20: SocketMessengerConstants.java
  2: // SocketMessengerConstants defines constants for the port numbers
  3: // and multicast address in DeitelMessenger
  4: package com.deitel.messenger.sockets;
  5: 
  6: public interface SocketMessengerConstants 
  7: {   
  8:    // address for multicast datagrams
  9:    public static final String MULTICAST_ADDRESS = "239.0.0.1";
 10:    
 11:    // port for listening for multicast datagrams
 12:    public static final int MULTICAST_LISTENING_PORT = 5555;
 13:    
 14:    // port for sending multicast datagrams
 15:    public static final int MULTICAST_SENDING_PORT = 5554;
 16:    
 17:    // port for Socket connections to DeitelMessengerServer
 18:    public static final int SERVER_PORT = 12345;   
 19:    
 20:    // String that indicates disconnect
 21:    public static final String DISCONNECT_STRING = "DISCONNECT";
 22: 
 23:    // String that separates the user name from the message body
 24:    public static final String MESSAGE_SEPARATOR = ">>>";
 25: 
 26:    // message size (in bytes)
 27:    public static final int MESSAGE_SIZE = 512;
 28: } // end interface SocketMessengerConstants
 29: 
 30: 
 31: /**************************************************************************
 32:  * (C) Copyright 1992-2005 by Deitel & Associates, Inc. and               *
 33:  * Pearson Education, Inc. All Rights Reserved.                           *
 34:  *                                                                        *
 35:  * DISCLAIMER: The authors and publisher of this book have used their     *
 36:  * best efforts in preparing the book. These efforts include the          *
 37:  * development, research, and testing of the theories and programs        *
 38:  * to determine their effectiveness. The authors and publisher make       *
 39:  * no warranty of any kind, expressed or implied, with regard to these    *
 40:  * programs or to the documentation contained in these books. The authors *
 41:  * and publisher shall not be liable in any event for incidental or       *
 42:  * consequential damages in connection with, or arising out of, the       *
 43:  * furnishing, performance, or use of these programs.                     *
 44:  *************************************************************************/
 45: