Can I put both RMI server and client in a same program

hi everybody...
I wanna know that can I use RMI server and client in a same program....My idea is like that I wanna use the same program for client and server....When I open my program, I can accept connection from other program and if I want to connect to others, I can also connect it. I expect you to understand my question. Here are the sample code for my program...
package Chat.Rmi;
import java.lang.*;
import java.util.*;
import java.rmi.*;
import javax.swing.*;
import java.net.*;
import java.rmi.server.*;
import java.rmi.registry.*;
public class netKitManager implements netKitInterface{
    public netKitManager(){
        try{
        reg = LocateRegistry.createRegistry(4242);
        reg.rebind("NetKitServer",this);
        }catch(RemoteException re){
    public void DirectConnect(String ip){
        try{
        netUser = (netKitInterface) Naming.lookup("rmi://"+ip+":4242/NetKitServer");
        JOptionPane.showMessageDialog(null,"Connection succeded!");
        }catch(NotBoundException nbe){
            JOptionPane.showMessageDialog(null,"There is no server at specified IP address!");
        }catch(MalformedURLException mue){
            JOptionPane.showMessageDialog(null,"IP adress may be wrong!");
        }catch(RemoteException re){
            JOptionPane.showMessageDialog(null,"Remote exception occured!");
    public void SendMessage(String msg){
        try{
        netUser.SetMessage(msg);
        }catch(RemoteException re){
    public void SetMessage(String msg) throws RemoteException{
        chatKit.SetMessage(msg);
    private netKitInterface netUser;
    private Hashtable netUserList;
    private Registry reg;
}

Yes it can be done. I have done it.

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First, Hi!
I have create my RMI Server and a RMI Servlet client.
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