Booleans

              
12345678910111213141516
            
using System;

namespace ConsoleApp
{
  internal class Program
  {
    static void Main(string[] args)
    {
      bool isOnline = true;
	  Console.WriteLine(isOnline); // Output: True

	  isOnline = false;
	  Console.WriteLine(isOnline); // Output: False
    }
  }
}