In the following text, we will build our first C# Application with, and then without, Visual Studio.Net. We will see how to write, compile, and execute the C# application. Later in the chapter, we will explain the different concepts in the program.

Open Notepad, or any other text editor, and write the following code:

using System;
namespace MyHelloWorldApplication
{
 class HelloWorld
 {
     static void Main(string[] args)
     {
         Console.WriteLine("Hello World,Welcome to http://www.codesforprogrammers.blogspot.com/ ");
     }
 }
}

Save this with any file name with the extension ".cs". Example: 'MyFirstApplication.cs' To compile this file, go to command prompt and write:

 csc MyFirstApplication.cs

This will compile your program and create an .exe file (MyFirstApplication.exe) in the same directory and will report any errors that may occur.
To run your program, type:

MyFirstApplication

This will print Hello World,Welcome to http://www.codesforprogrammers.blogspot.com/ as a result on your Console screen. So simple, isn't it? Let's do the same procedure with Visual Studio.Net:

With Visual Studio.Net

Start Microsoft Visual Studio.Net and Select File - New - Project; this will show the open file dialog. Select Visual C# Project from Project Type and select Console Application from Template. Write MyHelloWorldApplication in the name text box below and click OK.

Now to compile and execute your application, select Debug - Start Without Debugging or press Ctrl+F5. This will open a new Console Window with Hello World written in it. Once you press any key, the window will close,terminating the program.