1    package net.rmi; 
2     
3    import java.rmi.RMISecurityManager; 
4     
5    public class ComputeClient { 
6      public static void main(String args[]) { 
7        System.setSecurityManager(new RMISecurityManager()); 
8        try { 
9          lookUpServerAndExecute(); 
10       } catch (Exception e) { 
11         e.printStackTrace(); 
12       } 
13     } 
14    
15     private static void lookUpServerAndExecute() 
16         throws java.rmi.NotBoundException, 
17         java.net.MalformedURLException, 
18         java.rmi.RemoteException { 
19       String url = "rmi://localhost/ComputeServer"; 
20       Computable c = 
21           (Computable) java.rmi.Naming.lookup(url); 
22       c.println("this is cool"); 
23     } 
24   } 
25