C# Introduction

C# (C Sharp)

Definition - What does C# (C Sharp) mean?

C# is a general object-oriented programming (OOP) language for networking and Web development. C# is specified as a common language infrastructure (CLI) language. 

In January 1999, Dutch software engineer Anders Hejlsberg formed a team to develop C# as a complement to Microsoft’s NET framework. Initially, C# was developed as C-Like Object Oriented Language (Cool). The actual name was changed to avert potential trademark issues. In January 2000, NET was released as C#. Its NET framework promotes multiple Web technologies. 

The term is sometimes spelled as C Sharp or C-Sharp.

What is Console Application?

A console application is an application that runs in a console window same as a C and C++ program.

It doesn’t have any graphical user interface. Console Applications will have character based interface.  

Program : 1 "Add 2 Numbers"

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace SimpleProject

{

     public class Add2Num

    {

        public static void Main(string[] args)

        {

            Console.WriteLine("Enter the 1st Number:\t");

            int no1 = Convert.ToInt32(Console.ReadLine());

            Console.WriteLine("Enter the 2nd Number:\t");

            int no2 = Convert.ToInt32(Console.ReadLine());

            int tot=no1+no2;

            Console.WriteLine("Total:="+tot);

            Console.ReadKey();

        }

    }

}

Output

Note  

To write C# console program , 

Open Visual Studio -> File -> New Project -> Visual C# -> select Console Applications