Socket Programming in

By: Issac Emailed: 1788 times Printed: 2615 times    

Latest comments
By: rohit kumar - how this program is work
By: Kirti - Hi..thx for the hadoop in
By: Spijker - I have altered the code a
By: ali mohammed - why we use the java in ne
By: ali mohammed - why we use the java in ne
By: mizhelle - when I exported the data
By: raul - no output as well, i'm ge
By: Rajesh - thanx very much...
By: Suindu De - Suppose we are executing

A Socket is an End-Point of to and From (Bidirectional) communication link between two programs (Server Program and Client Program) running on the network. We need A Server Socket Program (Server) and a Client Socket Program (Client); for running a socket program. 

Server Program: A Server Socket Program running on a computer has a socket that bound to a Port Number on that computer which is listening to the client's requests.
Client Program: A client Socket Program has to know the IP Address (Hostname) of the computer that the Server Socket Program resides and the Port Number assign for listening for client's request.


Once the connection is established, the Server and Client can read or write their own sockets. 

There are two types of communication protocols which we can use for Socket programming; they are TCP/IP (Transmission Control Protocol/Internet protocol) Communication and UDP/IP (User Datagram Protocol/Internet protocol) Communication.

In the following section we are going to connect a Server Socket Program and Client Socket Program through VB.NET code using TCP/IP Communication.


In the above picture shows the communication interfaces.

Server Socket Program: 
Here Server Socket Program is done through a Console based VB.NET application. The Server listens for the client's request, and when it gets a request from the Client, it sends a response to Client. 

Client Socket Program: 
The Client Socket Program is a window based application and when it starts it gets connected to the server and sends requests, and also receives the response from Server. 
Let’s see how to run this program? The Socket Programming has two sections.

  • Server Socket Program
  • Client Socket Program

When you finish coding the program, first you have to run the Server Socket program; once it is started you will get the DOS screen with a message Server Started.
Next start the Client Socket Program. Then you will get message in client screen Client Started, at the same time check the server screen you will get a message as Accept connection from client.

Now the Server Socket Program and Client Socket Program get connected. If you click the button (Click here to send data to Server) in client window, and then you can see changes in Server and Client screen messages. Home | All Tutorials | Latest Tutorials

Sponsored Links

If this tutorial doesn't answer your question, or you have a specific question, just ask an expert here. Post your question to get a direct answer.

Bookmark and Share


1. View Comment

Really a appriciatable one. Can u plz send the code, if u don't mind.

View Tutorial          By: Jeevan at 2009-04-11 12:39:45
2. View Comment

Good programs example need for me

View Tutorial          By: G.Venugopal at 2009-11-11 08:46:38

Your name (required):

Your email(required, will not be shown to the public):

Your sites URL (optional):

Your comments:

More Tutorials by Issac
Save/Write/Read image file from/to a database using Java program
How to modify the objects using java classes
Java program for Cloning
Java program for changeable wrapper class
A tutorial on Chat Server and Chat Client in
Chat Server in
Chat client in
How to open and read an XML file in
How to create an XML file in
XML and
How to create an XML file in VB.NET using Dataset
Multi Threaded Client Socket Programming in
Multi Threaded Server Socket Programming in
Multi threaded Socket Programming in
Client Socket Program sample in

More Tutorials in
Scope in
Unstructured Exception Handling in
Structured Exception Handling in
Creating Sub Procedures in
Creating Functions in
Passing a Variable Number of Arguments to Procedures in
Specifying Optional Arguments with default values in Procedures in
Preserving a Variable's Values between Procedure Calls in
Procedure Delegates in
Properties in
Understanding Scope in
Using Resume Next and Resume Line in
Using On Error GoTo 0 in
Getting an Exception's Number and Description in
Raising an Exception Intentionally in

More Latest News
Most Viewed Articles (in )
Your first VB.NET Crystal Reports - A step by step guide
How to export from DataGridView to excel using
How to export from database to excel using
Arrays and Dynamic Arrays in
Using Resume Next and Resume Line in
A tutorial on Chat Server and Chat Client in
The Option and Imports Statements in VB .NET
How To Connect To A MySql Database in
Insert cell data in an Excel file using OLEDB in
Sub Procedures and Functions in
For Loop in
Read Data from Excel using OLEDB in VB.NET 2005
To read the entire worksheet in an Excel workbook through Code
Using Multiple Catch Statements in
Handling Timer Events - and Creating an Alarm Clock in
Most Emailed Articles (in
Operators in
Data types in
DataTable Class in
Using the ServiceInstaller Class in
Unstructured Exception Handling in
Getting an Exception's Number and Description in
Raising an Exception Intentionally in
Exception Filtering in the Catch Block in
Throwing a Custom Exception in
“Using If with And” and Comparing two integers using If
If…Else Statements in
For Each…Next Loop in
Sub Procedures and Functions in
The text writer in
Format Excel 2007 Page in VB.NET