import java.rmi.RemoteException;
import java.rmi.registry.LocateRegistry;
import java.rmi.registry.Registry;

public class HelloClient {
    
    public static void main(String args[]) { 
	
	if (args.length != 1) {
	    System.out.println("Usage: HelloClient host");
	    System.exit(1);
	}
	
	try { 
            String name = "Hello";
            Registry registry = LocateRegistry.getRegistry(args[0]);
            Hello hello = (Hello) registry.lookup(name);
	    String s = hello.sayHello(); 
	    System.out.println(s);
	    
	} catch (Exception e) { 
	    System.out.println("HelloClient exception: " + e.getMessage()); 
	    e.printStackTrace(); 
	} 
	
    } 
}