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.........