C# is an object-oriented, modern programming language that was created by Microsoft. It runs on the .NET Framework. C# is very close to C/C++ and Java programming languages. In this article, we will learn how to create a calculator in C#.
Basic Functions of Calculator:
- Addition of two numbers.
- Difference between two numbers.
- Product of two numbers.
- Division of two numbers.
Approach:
- Declare local variables num1 and num2 for two numeric values.
- Enter the choice.
- Takes two numbers, num1, and num2.
- do-while jump to an operator selected by the user.
- Display the operation result.
- Exit
Example:
// Implementing a calculator in
// C# using switch statement.
using System;
using System.Text;
using System.Threading.Tasks;
namespace calculator_c_sharp
{
class Program
{
static void Main(string[] args)
{
string value;
do
{
int res;
Console.Write("Enter first number:");
int num1 = Convert.ToInt32(Console.ReadLine());
Console.Write("Enter second number:");
int num2 = Convert.ToInt32(Console.ReadLine());
Console.Write("Enter symbol(/,+,-,*):");
string symbol = Console.ReadLine();
switch (symbol)
{
case "+":
res = num1 + num2;
Console.WriteLine("Addition:" + res);
break;
case "-":
res = num1 - num2;
Console.WriteLine("Subtraction:" + res);
break;
case "*":
res = num1 * num2;
Console.WriteLine("Multiplication:" + res);
break;
case "/":
res = num1 / num2;
Console.WriteLine("Division:" + res);
break;
default:
Console.WriteLine("Wrong input");
break;
}
Console.ReadLine();
Console.Write("Do you want to continue(y/n):");
value = Console.ReadLine();
}
while (value=="y" || value=="Y");
}
}
}
Output:
Addition of two numbers:
Subtraction of two numbers:
Multiplication of two numbers:
Division of two numbers:
