C# program to check if a number is divisible by 2

Here's a C# program to check if a number is divisible by 2:

using System;

class Program
{
    static void Main(string[] args)
    {
        Console.Write("Enter a number: ");
        int number = Convert.ToInt32(Console.ReadLine());

        if (IsDivisibleByTwo(number))
        {
            Console.WriteLine($"{number} is divisible by 2.");
        }
        else
        {
            Console.WriteLine($"{number} is not divisible by 2.");
        }
    }

    static bool IsDivisibleByTwo(int number)
    {
        return number % 2 == 0;
    }
}

In this program, the IsDivisibleByTwo method takes an integer number as input and checks if it is divisible by 2. It uses the modulo operator % to calculate the remainder when number is divided by 2. If the remainder is 0, it means the number is divisible by 2, so the method returns true; otherwise, it returns false.

The Main method prompts the user to enter a number, calls the IsDivisibleByTwo method with the user input, and displays the appropriate message based on the result.

Note that the program assumes the user will input a valid integer. It doesn't handle exceptions if the input is not a valid integer.