class Beta extends NetworkPeer implements BetaServices, java.rmi.Remote {

  AlphaServices other; 

  public boolean even(int n) throws java.rmi.RemoteException {
    System.out.println("You are asking if " + n + " is even..."); 
    if (n == 0) return true; 
    else return other.odd(n-1); 
  }  

  public void startAsLocalServer() {

  }  

  public void startAsClientOf(java.rmi.Remote peer) throws java.rmi.RemoteException {
    ((AlphaServices)peer).register(this); 
  }

  public void register(AlphaServices alpha) throws java.rmi.RemoteException {
    this.other = alpha;
  }

  public static void main(String[] args) throws /*Remote*/Exception {

    String 
      portNumber = args[0], 
      ownName = args[1]; 

    Beta server = new Beta(); 
    server.startAsNetworkServer(ownName, 
	 		        Integer.parseInt(portNumber)); 

    System.out.println("Press a key if the other server is up and running..."); 
    new java.io.BufferedReader(new java.io.InputStreamReader(System.in)).readLine(); 

    String 
            serverHostName = args[2], 
            serverPortNumber = args[3], 
            serverName = args[4];

    java.rmi.Remote peer = server.locatePeer(serverHostName, 
                                             Integer.parseInt(serverPortNumber), 
                                             serverName); 
    server.startAsClientOf(peer); 
 
    System.out.println("Is 5 even? The answer is: " + server.even(5)); 
    System.out.println("Is 5 odd? The answer is: " + ((AlphaServices)peer).odd(5)); 

    System.out.println("Press a key when you want this to end ...");    
    new java.io.BufferedReader(new java.io.InputStreamReader(System.in)).readLine();


  }
}