Program to convert Hexa-Decimal Number to its equivalent BCD

Last Updated : 14 Dec, 2020

Given a HexaDecimal Number N, the task is to convert the number to its equivalent Binary Coded Decimal.
Examples:

Input: 11F
Output: 0001 0001 1111
Explanation:
Binary of 1 – 0001
Binary of F – 1111
Thus, Equivalent BCD is 0001 0001 1111
Input: A D
Output: 1010 1101
Explanation:
Binary of A – 1010
Binary of D – 1101
Thus, Equivalent BCD is 1010 1101

Approach: The idea is to iterate over each digit of the given Hexa-Decimal number and find the four digit Binary Equivalent of that digit. Finally, print all the converted digits one by one.
Below is the implementation of the above approach:

C++

// C++ implementation  to convert the given
// HexaDecimal number to its equivalent BCD.
 
#include <bits/stdc++.h>
using namespace std;
 
// Function to convert
// HexaDecimal to its BCD
void HexaDecimaltoBCD(string s)
{
    int len = s.length(), check = 0;
    int num = 0, sum = 0, mul = 1;
 
    // Iterating through the digits
    for (int i = 0; i <= len - 1; i++) {
 
        // check whether s[i] is a character
        // or a integer between 0 to 9
        // and compute its equivalent BCD
        if (s[i] >= 47 && s[i] <= 52)
            cout << bitset<4>(s[i])
                 << " ";
        else
            cout << bitset<4>(s[i] - 55)
                 << " ";
    }
}
 
// Driver Code
int main()
{
    string s = "11F";
 
    // Function Call
    HexaDecimaltoBCD(s);
 
    return 0;
}

Java

// Java implementation  to convert the given 
// HexaDecimal number to its equivalent BCD. 
public class Main
{
    // Function to convert 
    // HexaDecimal to its BCD 
    public static void HexaDecimaltoBCD(String s) 
    { 
        int len = s.length(), check = 0; 
        int num = 0, sum = 0, mul = 1; 
       
        // Iterating through the digits 
        for (int i = 0; i <= len - 1; i++) { 
       
            // check whether s[i] is a character 
            // or a integer between 0 to 9 
            // and compute its equivalent BCD 
            if (s.charAt(i) >= 47 && s.charAt(i) <= 52) 
            {
                String result = Integer.toBinaryString((int)s.charAt(i));
                System.out.print(result.substring(result.length() - 4) + " ");
            }
            else
            {
                String result = Integer.toBinaryString((int)s.charAt(i) - 55);
                System.out.print(result.substring(result.length() - 4) + " ");
            }
        } 
    } 
 
    public static void main(String[] args) {
        String s = "11F"; 
   
        // Function Call 
        HexaDecimaltoBCD(s); 
    }
}
 
// This code is contributed by divyesh072019

Python3

# Python3 program to convert the given
# HexaDecimal number to its equivalent BCD
 
# Function to convert
# Haxadecimal to BCD
def HexaDecimaltoBCD(str):
 
    # Iterating through the digits
    for i in range(len(str)):
         
        # Conversion into equivalent BCD
        print("{0:04b}".format(
              int(str[i], 16)), end = " ")
 
# Driver code 
str = "11F"
 
# Function call 
HexaDecimaltoBCD(str)
 
# This code is contributed by himanshu77

C#

// C# implementation  to convert the given 
// HexaDecimal number to its equivalent BCD. 
using System;
class GFG {
     
    // Function to convert 
    // HexaDecimal to its BCD 
    static void HexaDecimaltoBCD(string s) 
    { 
        int len = s.Length; 
        
        // Iterating through the digits 
        for (int i = 0; i <= len - 1; i++) { 
        
            // check whether s[i] is a character 
            // or a integer between 0 to 9 
            // and compute its equivalent BCD 
            if (s[i] >= 47 && s[i] <= 52) 
            {
                string result = Convert.ToString((int)s[i], 2);
                Console.Write(result.Substring(result.Length - 4) + " ");
            }
            else
            {
                string result = Convert.ToString((int)s[i] - 55, 2);
                Console.Write(result.Substring(result.Length - 4) + " ");
            }
        } 
    } 
     
  static void Main() {
        string s = "11F"; 
    
        // Function Call 
        HexaDecimaltoBCD(s); 
  }
}
 
// This code is contributed by diyeshrabadiya07

Output:

0001 0001 1111

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