.Net Practical 6

Practical : 6
Subject : .Net

Aim : Write C# code to Convert binary to decimal,Convert decimal to hexadecimal,Convert decimal to binary,Convert decimal to octal.

Source Code :

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace dotnet008

{

    class pra6

    {

        static void Main(string[] args)

        {

            String d;

            do

            {

                Console.WriteLine("\n---------Select Your Choice---------");

                Console.WriteLine("1. binary to decimal \n2. decimal to hexadecimal \n3. decimal to binary \n4. decimal to octal");

                int n = Convert.ToInt32(Console.ReadLine());

                switch (n)

                {

                    case 1:

                        int num, r, dn = 0, b1 = 1;

                        Console.Write("Enter Binary number : ");

                        num = Convert.ToInt32(Console.ReadLine());

                        while (num > 0)

                        {

                            r = num % 10;

                            num = num / 10;

                            dn += r * b1;

                            b1 = b1 * 2;

                        }

                        Console.Write("Decimal Number : " + dn);

                        break;

                    case 2:

                        int den, quotient;

                        int i = 1, j, temp = 0;

                        char[] hexn = new char[100];

                        char temp1;

                        Console.Write("Enter Decimal Number :");

                        den = int.Parse(Console.ReadLine());

                        quotient = den;

                        while (quotient != 0)

                        {

                            temp = quotient % 16;

                            if (temp < 10)

                                temp = temp + 48;

                            else

                                temp = temp + 55;

                            temp1 = Convert.ToChar(temp);

                            hexn[i++] = temp1;

                            quotient = quotient / 16;

                        }

                        Console.Write("HexaDecimal Number : ");

                        for (j = i - 1; j > 0; j--)

                            Console.Write(hexn[j]);

                        break;

                    case 3:

                        int[] a = new int[10];

                        Console.Write("Enter Decimal Number : ");

                        n = int.Parse(Console.ReadLine());

                        for (i = 0; n > 0; i++)

                        {

                            a[i] = n % 2;

                            n = n / 2;

                        }

                        Console.Write("Binary Number : ");

                        for (i = i - 1; i >= 0; i--)

                        {

                            Console.Write(a[i]);

                        }

                        break;

                    case 4:

                        int decVal, quot, ii = 1;

                        int[] octalVal = new int[80];

                        Console.Write("Enter Decimal Number : ");

                        decVal= int.Parse(Console.ReadLine());

                        quot = decVal;

                        while (quot != 0)

                        {

                            octalVal[ii++] = quot % 8;

                            quot = quot / 8;

                        }

                        Console.Write("Octal Number : ");

                        for (j = ii - 1; j > 0; j--)

                            Console.Write(octalVal[j]);

                        break;

                }

                Console.Write("\nDo You Want to Continue (Y/N)? : ");

                d = Console.ReadLine();

            } while (d == "y" || d == "Y");

            Console.ReadKey();

        }

    }

}

Output :