C# Program to perform Addition, Subtraction, Multipilcation and Division operation.

The following program perform mathematical operation such as Addition, Subtraction, Multipilcation and Division operation.

using System;
using System.Collections.Generic;
using System.Text;

namespace ConsoleApplication1
{
class Program
{
int Number1, Number2;
char option;
int Result;

public void Number()
{
Console.WriteLine("Enter the First Number:");
Number1 = Convert.ToInt32(Console.ReadLine());

Console.WriteLine("Enter the Second Number:");
Number2 = Convert.ToInt32(Console.ReadLine());

Console.WriteLine("Main Menu");
Console.WriteLine("1. Addition");
Console.WriteLine("2. Subtraction");
Console.WriteLine("3. Multiplication");
Console.WriteLine("4. Division");

Console.WriteLine("Enter the Operation you want to perform");
option = Convert.ToChar(Console.ReadLine());

switch (option)
{
case '1':
Result = Number1 + Number2;
Console.WriteLine("The result of Addition is:{0}", Result);
break;
case '2':
Result = Number1 - Number2;
Console.WriteLine("The result of Subtraction is:{0}", Result);
break;
case '3':
Result = Number1 * Number2;
Console.WriteLine("The result of Multiplication is:{0}", Result);
break;
case '4':
Result = Number1 / Number2;
Console.WriteLine("The result of Division is:{0}", Result);
break;
default:
Console.WriteLine("Invalid Option");
break;
}
Console.ReadLine();
}

static void Main(string[] args)
{
Program objProgram = new Program();
objProgram.Number();            
}
}
} 

Output: