class Alpha extends NetworkPeer implements AlphaServices, java.rmi.Remote {

  BetaServices other; 

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

  public void startAsLocalServer() {

  }  

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

  public void register(BetaServices beta) throws java.rmi.RemoteException {
    this.other = beta;
    System.out.println(beta + " is registering into " + this); 
  }

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

    String
      portNumber = args[0],
      ownName = args[1];
    
    Alpha server = new Alpha(); 

    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];
            
    server.startAsClientOf(server.locatePeer(serverHostName,
                                             Integer.parseInt(serverPortNumber),
                                             serverName));

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

}