Arithmetic calculator in Monodevelop

Introduction

This is a calculator which can calculate arithmetic operations like addition, subtraction, multiplication and division.

Steps for Creating the Calculator in the Monodevelop IDE

Step 1 : Open monodevelop IDE --> file menu --> new solution --> then select console Application-->rename as twonumber

Step 2: Modify the Code:

// Program to Calculate the Arithmetic operations using C#
using System;
namespace twonumber
{
class MainClass
{
public static void Main(string[] args)
{
float first; float second; float output;
Console.WriteLine(" CAlCULATOR CHOICES");
Console.WriteLine("*************************************");
Console.WriteLine(" 1.Addition");
Console.WriteLine(" 2.Substraction");
Console.WriteLine(" 3.Multiplication");
Console.WriteLine(" 4.Division");
Console.WriteLine("*************************************");
Console.WriteLine("ENTER YOUR CHOICE");
int a = Convert.ToInt32(Console.ReadLine());
switch (a)
{
case 1:
Console.WriteLine("Enter First Number :");
first = Convert.ToInt64(Console.ReadLine());
Console.WriteLine("Enter Second Number :");
second = Convert.ToInt64(Console.ReadLine());
output = first + second;
Console.WriteLine("ADDTION OF TWO INPUT NUMBERS: " + output); break;
case 2:
Console.WriteLine("Enter First Number :");
first = Convert.ToInt64(Console.ReadLine());
Console.WriteLine("Enter Second Number :");
second = Convert.ToInt64(Console.ReadLine());
Console.WriteLine("SUBSTRACTION OF TWO INPUT NUMBERS: " + output); break;
case 3:
Console.WriteLine("Enter First Number :");
first = Convert.ToInt64(Console.ReadLine());
Console.WriteLine("Enter Second Number :");
second = Convert.ToInt64(Console.ReadLine());
output = first * second;
Console.WriteLine("MULTIPLICATION OF TWO INPUT NUMBERS: " + output); break;
case 4:
Console.WriteLine("Enter First Number :");
first = Convert.ToInt64(Console.ReadLine());
Console.WriteLine("Enter Second Number :");
second = Convert.ToInt64(Console.ReadLine());
output = first / second;
Console.WriteLine("DIVISION OF TWO INPUT NUMBERS: " + output); break;
default: Console.WriteLine("Invalid choice !"); break;
}
Console.WriteLine("***************************************");
console.WriteLine("Thanks you !! DEEPAK DWIJ !!"); Console.Read();
}
}
}

Step3: To Run F5

Step 4 : Ouput

Enter Your choice

Enter your input

Final Result

Note: Same Process for Subtraction, multiply and Division.........