C#: Convert a decimal number to binary without using an array

C# Sharp For Loop: Exercise-41 with Solution

Write a program in C# Sharp to convert a decimal number into binary without using an array.

Visual Presentation:

Sample Solution:

C# Sharp Code:

using System;  // Importing necessary namespace

public class Exercise41  // Declaration of the Exercise41 class
{  
    public static void Main()  // Main method, entry point of the program
    {
        int n, i, j, binno = 0, dn;  // Declaration of variables

        Console.Write("\n\n");  // Displaying new lines
        Console.Write("Convert a decimal number to binary without using array:\n");  // Displaying the purpose of the program
        Console.Write("---------------------------------------------------------\n\n");  // Displaying a separator and new lines

        Console.Write("Enter a number to convert : ");  // Prompting user to enter a number
        n = Convert.ToInt32(Console.ReadLine());  // Reading user input

        dn = n;  // Storing the original decimal number

        i = 1;  // Initializing variable for binary conversion

        for (j = n; j > 0; j = j / 2)  // Loop to convert decimal to binary
        {
            binno = binno + (n % 2) * i;  // Calculating binary digits
            i = i * 10;  // Shifting position for next binary digit
            n = n / 2;  // Updating the decimal number for next iteration
        }

        Console.Write("\nThe Binary of {0} is {1}.\n\n", dn, binno);  // Displaying the converted binary number
    }
}

Sample Output:

Convert a decimal number to binary without using array:                                                     
---------------------------------------------------------                                                   
Enter a number to convert : 65                                                                              
The Binary of 65 is 1000001. 

Flowchart:

C# Sharp Code Editor:

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