simple chat application in java source code

Public void startChatServer()throws RemoteException // server will start client socket Public String getPassword()throws RemoteException // server will get username and password Public String getUsername()throws RemoteException Public interface ClientInterface extends Remote Here, in the register method, client will pass its remote interface to server, so that server can call remote methods on client.

Public void Signingout(String uname) throws RemoteException // Signout from the application Public String test()throws RemoteException Public String getFrendIP(String uname)throws RemoteException // give friendlist Public boolean register(ClientInterface obj)throws RemoteException // validate and register to client to application Public interface RegInterface extends Remote Here is RegInterface which will contain methods to be called by client : Here, we have started the rmi registry, and exposed the RegInterface object, which will be used by client to make remote calls to server. ('registery created waiting for connection') Registry r = LocateRegistry.createRegistry(portNo) Registry r = LocateRegistry.getRegistry(portNo) Public static void startRegistry(int portNo)throws RemoteException RegInterface_Impl obj=new RegInterface_Impl() register exported object to naming directory Public static void main(String args)throws IOException * Main server where user have registered and creating port for this application In this part of tutorial, we will create a RMI Server and client interface which will be called by RMI Server. The chat messages are transferred directly between the clients by using socket connection between them. So rmi server here does not store or save chat. When a client start chat with online friend, the rmi server issues a remote call to start a socket connection to transfer chat messages. When the client connects to rmi server, it provides it’s ip also which is saved by rmi server. Server stores user list and friends list in it's internal database. Whenever a friend becomes online or offline, the client is notified and friends list changes dynamically. Whenever a client connects to server, it will first authenticate the client (client can register himself on the server ) After successful authentication, the client will be shown friend’s list, so that he can chat to his friends. The server will be running as rmi server. This chat application will have two parts ( client and server ). First let’s take a look at the functionalities we will be creating in this chat application. This tutorial is about creating a chat application using java RMI, Socket connection and java swing.

Simple chat application in java source code