## Wednesday, 19 July 2017

### Simple program

Simple program #9 (Source code to calculator program)

Enter first number: 5
Enter second number: 6
Choose an operator type from +, -, *, /, %: *
O/p: -
5 * 6 = 30

The program is written in C# programming language and will accept two numbers as input. The logic of the program is to do calculation based on the input operator.

 Simple program

Note: If you are new to C# and Console Application. Try to code First C# Program

Note: Read articles on how to use Loops and Conditions.

Let’s find out a simple and easy way to code the program.

Practical Implementation:

using System;

namespace patternProblem.Simple_program
{
class Simple9   //Calculator program
{
static void Main(string[] args)
{
try
{
Console.Write("Enter first number: ");
Console.Write("Enter second number: ");
Console.Write("Choose an operator type from +, -, *, /, %: ");

Console.WriteLine();

Console.WriteLine("-----Output-----");
Console.WriteLine();
switch (operatorSymbol)
{
case '+':
Console.WriteLine("{0} + {1} = {2}", firstNumber, secondNumber, firstNumber + secondNumber);
break;
case '-':
Console.WriteLine("{0} - {1} = {2}", firstNumber, secondNumber, firstNumber - secondNumber);
break;
case '*':
Console.WriteLine("{0} * {1} = {2}", firstNumber, secondNumber, firstNumber * secondNumber);
break;
case '/':
Console.WriteLine("{0} / {1} = {2}", firstNumber, secondNumber, (double)(firstNumber / secondNumber));
break;
case '%':
Console.WriteLine("{0} % {1} = {2}", firstNumber, secondNumber, firstNumber % secondNumber);
break;
default:
Console.WriteLine("Invalid ! operation");
break;
}

}
catch (Exception ex)
{
Console.WriteLine("Error! : " + ex.Message);
}
}
}
}

Output:
The input numbers are 5 and 6. The program will do calculation based on the input operator. The output is shown below:

Enter first number: 5
Enter second number: 6
Choose an operator type from +, -, *, /, %: *

5 * 6 = 30
Press any key to continue . . .

For any query, comment us below.

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