How to Count the Number of 1 Bits in C# ?

Published on May 27, 2014 by Senthil Kumar

Filed under C#

Last modified May 27, 2014

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Do you want to count the  number of 1’s in a number in C# ? . Below is a sample source code that demonstrates how to count the number of 1 bits.

How to Count the Number of 1 Bits in C# ?

using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace AbundantcodeConsoleApp
    internal class Program
        private static void Main(string[] args)
            // How to Count the Number of 1 Bits in C# ?
            int Input = 5;
            int NoOfBits = 0;
            while (Input > 0)
                Input &= (Input - 1);


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