try {
RemoteServer server = (RemoteServer)
Naming.lookup("rmi://"+host+"/NiftyServer");
System.out.println( server.getDate( ) );
System.out.println(
server.execute( new MyCalculation(2) ) );
} catch (java.io.IOException e) {
// I/O Error or bad URL
System.out.println( e );
} catch (NotBoundException e) {
// NiftyServer isn't registered
System.out.println( e );
}