Answer to Question #186604 in C++ for RAHUL SINGH

Question

Write a program which has a class called binary which has a character array to store a binary

string. The class decimal derives from class binary and contains an integer data member. Another

class called hexadecimal also derives from binary. Each class should contain constructors and

appropriate data members to input and display the elements. The display function of binary class

displays the binary equivalent, hexadecimal class’s display function displays hexadecimal

equivalent whereas decimal class’s display function displays the decimal equivalent.

Answer 1

#include <iostream>
using namespace std;
#include <math.h>

class Binary{
    public:
        char binNum[5]="1010";
        Binary(){
            cout<<"\nThe binary equivalent is: "<<binNum;
        }


};




class Decimal: public Binary{
    private:
        int decNum;


    public:
        Decimal(){
            int n=atoi(binNum);
            decNum = 0;
            int base = 1;


            int temp = n;
            while (temp) {
                int last_digit = temp % 10;
                temp = temp / 10;


                decNum += last_digit * base;


                base = base * 2;
            }
            cout<<"\n"<<"The decimal equivalent is: "<<decNum;
        }


};




class Hexadecimal: public Binary{
    private:
        int hex;


    public:
        Hexadecimal(){
            int hex[1000];
            int i = 1, j = 0, rem, dec = 0, binaryNumber;
            binaryNumber=atoi(binNum);
            while (binaryNumber > 0)
              {
               rem = binaryNumber % 2;
               dec = dec + rem * i;
               i = i * 2;
               binaryNumber = binaryNumber / 10;
              }
               i = 0;
              while (dec != 0)
              {
               hex[i] = dec % 16;
               dec = dec / 16;
               i++;
              }
              cout<<" \nThe hexadecimal equivalent: ";
              for (j = i - 1; j >= 0; j--)
              {
               if (hex[j] > 9)
               {
                cout<<(char)(hex[j] + 55)<<"\n";
               }
               else
               {
                cout<<hex[j]<<"\n";
               }
              }


        }


};
int main(){
    Decimal dec1;
    Hexadecimal hex1;
    return 0;
}