C# - Check if a Number is Binary or not

This program takes an input from the user and checks if it is a Binary Number. That is, if the input contains only 1's and 0's

CODE

using System; class Program { public static void Main(string[] args) { Console.Write("Enter a Binary Number: "); string binaryNumber = Console.ReadLine(); binaryNumber = binaryNumber.Trim(); bool isBinaryNumber = true; for(int i = 0; i < binaryNumber.Length; i++) { if (binaryNumber[i] != '1' && binaryNumber[i] != '0') { isBinaryNumber = false; break; } } Console.WriteLine("Is Binary Number? " + isBinaryNumber); Console.ReadKey(); } }

INPUT & OUTPUT

The below is the output of the program.