Tag: decimal

How to convert decimal number to hexadecimal in C# using method

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using System;
using System.Text;
 
class DecToHex
{
    static void Main(string[] args)
    {
        long num = 100000;
        Console.WriteLine(DecimalToHex(num)); // 186A0
    }
 
    private static string DecimalToHex(long num)
    {
        var res = new StringBuilder();
        while (num > 0)
        {
            var reminder = num % 16;
            if (reminder > 9)
            {
                res.Insert(0, (char)(reminder + 55));
            }
            else
            {
                res.Insert(0, reminder);
            }
 
            num /= 16;
        }
 
        return res.ToString();
    }
}

How to convert decimal to binary number in C# using method

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using System;
using System.Text;
 
class DecToBin
{
    static void Main(string[] args)
    {
        long num = int.MaxValue * 2L;
        Console.WriteLine(DecimalToBinary(num)); // 11111111111111111111111111111110
    }
 
    private static string DecimalToBinary(long num)
    {
        StringBuilder res = new StringBuilder();
        while (num > 0)
        {
            res.Insert(0, num % 2);
            num /= 2;
        }
 
        return res.ToString();
    }
}

How to convert binary number to decimal in C# using method.

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using System;
 
    class BinToDec
    {
        static void Main(string[] args)
        {
            string binary = "101";
            Console.WriteLine(BinaryToDecimal(binary)); // will return 5
 
        }
 
        private static long BinaryToDecimal(string binary)
        {
            long decimalNum = 0;
            for (int i = binary.Length - 1, pow = 0; i >= 0; i--, pow++)
            {
                decimalNum += int.Parse(binary[i].ToString()) * (long)Math.Pow(2, pow);
            }
 
            return decimalNum;
        }
    }