java socket programming

Designing a Broadcast Messenger Using Socket Programming in Java
By Fatima Ahmed

Introduction

Java is a powerful, object-oriented language that supports much functionality, including client/server communication through socket programming, windows-based programming, console programming, database connectivity, image, and sound programming. Java is mainly designed for Internet programming and to create small applications that can be embedded inside an HTML page, known as Applets.

Before coming to the actual coding of the program, some important terms need to be defined so that the concept becomes clear. The purpose of a broadcast messenger is to create a server that is responsible for receiving and responding to messages that are received from the clients to all the clients available on the network. This is called as Broadcasting (to send the packet or message to all the hosts).

The server/client architecture is basically applied here because one of the computers will act as a Server responding to client messages, while all other computers will behave as Clients that only send requests to the server to perform some task. Sockets are logical connections that are created to connect the computers to each other. A port number and a host IP address/host name is required to create a socket.

Full Article:  http://www.developer.com/java/other/article.php/3315501

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