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.
#include <iostream>
#include <cmath>
#include <string>
using namespace std;
class Binary
{
public:
Binary(const char* str);
void Display() { cout << display << endl; }
protected:
char* data;
char* display;
private:
const int MAX = 100;
};
Binary::Binary(const char* str)
{
int count = 0;
display = new char[MAX];
while (str[count] != '\0')
{
display[count] = str[count];
count++;
}
display[count] = '\0';
int tempI = count;
data = new char[count + 1];
for (int i = 0; i < tempI; i++)
{
data[i] = display[count];
}
data[tempI] = '\0';
}
class Integer : public Binary
{
public:
Integer(const char* str);
Integer(int number);
void Display() { cout << intData << endl; }
private:
int intData;
};
Integer::Integer(int number) : Binary("0"), intData(number)
{}
Integer::Integer(const char* str) : Binary(str)
{
int sum = 0;
int count = 0;
while (str[count] != '\0')
{
if (str[count] == '0')
{
count++;
continue;
}
else
{
sum += pow(2, count);
count++;
}
}
intData = sum;
}
class Hexadecimal : public Binary
{
public:
Hexadecimal(const char* str);
void Display();
private:
};
Hexadecimal::Hexadecimal(const char* str) : Binary(str)
{
}
void Hexadecimal::Display()
{
int i = 0;
string temp;
while (display[i] != '\0')
{
temp += display[i];
i++;
}
string temp2;
if (temp.size() % 4 == 0) temp2 = temp;
if (temp.size() % 4 == 3)
{
temp2 += "0";
temp2 += temp;
}
if (temp.size() % 4 == 2)
{
temp2 += "00";
temp2 += temp;
}
if (temp.size() % 4 == 1)
{
temp2 += "000";
temp2 += temp;
}
string temp3;
for (int j = 0; j < temp2.size();)
{
temp3 += temp2[j];
j++;
temp3 += temp2[j];
j++;
temp3 += temp2[j];
j++;
temp3 += temp2[j];
j++;
if (temp3 == "0000") cout << '0';
if (temp3 == "0001") cout << '1';
if (temp3 == "0010") cout << '2';
if (temp3 == "0011") cout << '3';
if (temp3 == "0100") cout << '4';
if (temp3 == "0101") cout << '5';
if (temp3 == "0110") cout << '6';
if (temp3 == "0111") cout << '7';
if (temp3 == "1000") cout << '8';
if (temp3 == "1001") cout << '9';
if (temp3 == "1010") cout << 'A';
if (temp3 == "1011") cout << 'B';
if (temp3 == "1100") cout << 'C';
if (temp3 == "1101") cout << 'D';
if (temp3 == "1110") cout << 'E';
if (temp3 == "1111") cout << 'F';
temp3.clear();
}
cout << endl;
}
int main()
{
char ptr[100];
int i = 0;
cout << "Enter binary: ";
while (cin.peek() != '\n')
{
cin >> ptr[i];
i++;
}
ptr[i] = '\0';
Binary obj1(ptr);
cout << "Binary: ";
obj1.Display();
cout << endl;
cout << "Decimal: ";
Integer obj2(ptr);
obj2.Display();
cout << endl;
cout << "Hexadecimal: ";
Hexadecimal obj3(ptr);
obj3.Display();
return 0;
}
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