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C# program to convert a decimal number into a binary number

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mahmoud2506
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2022-05-09
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C# program to convert a decimal number into a binary number

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mahmoud2506
2022-05-09
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Program:

The source code to convert a decimal number to the binary number is given below. The given program is compiled and executed successfully on Microsoft Visual Studio.

//C# program to convert a decimal number to the binary number

using System;

class Program
{
    static void Main(string[] args)
    {
        int decNum  =   0;
        int binNum  =   0;
        
        string tempRem = "";
        
        Console.Write("Enter a decimal number : ");
        decNum = int.Parse(Console.ReadLine());

        while (decNum >= 1)
        {
            tempRem += (decNum % 2).ToString();
            decNum = decNum / 2;
        }

        for (int i = tempRem.Length - 1; i >= 0; i--)
        {
            binNum = binNum*10 + tempRem[i]-0x30;
        }

        Console.WriteLine("Binary Number: "+binNum);
    }
}

Output:

Enter a decimal number : 9
Binary Number: 1001
Press any key to continue . . .

Explanation:

In the above program, we create a class Program that contains the Main() method, In the Main() method we read a decimal number from user input and then convert the decimal number into a corresponding binary number.

while (decNum >= 1)
{
    tempRem += (decNum % 2).ToString();
    decNum = decNum / 2;
}

In the above code, we find the remainder of the decimal number after dividing by 2 and then concatenated into the string.

for (int i = tempRem.Length - 1; i >= 0; i--)
{
    binNum = binNum*10 + tempRem[i]-0x30;
}

In the above code, we reversed the remainder string and covert the into the integer number and then print the result on the console screen.

 

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