simple chat application in java source code

Recipient: Username of recipient of the message.type: This can be set to message, login, newuser, etc.Message structureĮach message in jMessenger has four fields: In many cases, if jMessenger cannot find the server then adjust firewall to give it network access.īoth applications are written in Netbeans and you can import source files in Netbeans to view and edit them.On jMessenger select ' History.xml' as history file.This file contains usernames and passwords. On jServer select ' data.xml' as database file.Run the jar files jMessenger.jar and jServer.jar and do the following:

Support for both public and private messages.

Handles multiple users at the same time.

It is entirely based on Java and consists of two parts: jMessenger (client application) and jServer (server application). If clients connects with the given port number, it returns an instance of Socket.In this article I am demonstrating a chat application which can handle multiple users at the same time. The accept() method waits for the client. You may also choose any other port number. Here, we are using 6666 port number for the communication between the client and server. To create the server application, we need to create the instance of ServerSocket class. Returns the socket and establish a connection between server and client. This object is used to establish communication with the clients.

The ServerSocket class can be used to create a server socket. Returns the OutputStream attached with this socket. Returns the InputStream attached with this socket. The Socket class can be used to create a socket. After the successful connection of client, it returns the instance of Socket at server-side.Ī socket is simply an endpoint for communications between the machines. The accept() method of ServerSocket class blocks the console until the client is connected. The ServerSocket class is used at server-side. Through this class, we can read and write message. The Socket class is used to communicate client and server. Here, two classes are being used: Socket and ServerSocket. In this application, client sends a message to the server, server reads the message and prints it. Here, we are going to make one-way client and server communication. The client in socket programming must know two information: Socket and ServerSocket classes are used for connection-oriented socket programming and DatagramSocket and DatagramPacket classes are used for connection-less socket programming.

Java Socket programming can be connection-oriented or connection-less. Java Socket programming is used for communication between the applications running on different JRE.

Simple chat application in java source code