C# even or odd | ecode10.com

C# even or odd

Coding in practice

.NET

Tuesday, June 17, 2025

Mauricio Junior

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even-or-odd

In C#, to determine if a number is even or odd, you can use the modulo operator (%). This operator returns the remainder of a division operation.

Here's how it works:

If a number divided by 2 has a remainder of 0, the number is even.
If a number divided by 2 has a remainder of 1, the number is odd.

The provided C# code functions as follows:

An integer variable, number, stores the user's input.
Console.WriteLine() prompts the user to input a number.
Console.ReadLine() reads the input as a string.
Convert.ToInt32() converts the string input into an integer.
The if (number % 2 == 0) statement checks if dividing number by 2 results in a remainder of 0.
If the condition is true (remainder is 0), a message indicating an even number is printed.
If the condition is false (remainder is not 0), a message indicating an odd number is printed.

This code uses the modulo operator to determine if a number is even or odd in C#. The code can be modified to return a boolean value (true for even, false for odd) or perform other actions based on the outcome.

using System;

public class NumberCheck
{
 	public static void Main(string[] args)
	{
    	Console.WriteLine("Enter a number:"); // Prompt the user for input
    	int number = Convert.ToInt32(Console.ReadLine()); // Read and convert the input to an integer

    	if (number % 2 == 0) // Check if the remainder when divided by 2 is 0
    	{
        	Console.WriteLine($"{number} is an even number"); // Print that the number is even
    	}
    	else
    	{
        	Console.WriteLine($"{number} is an odd number"); // Print that the number is odd
    	}
	}
}

Code 1 - Check number