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C++ program to demonstrate example of hierarchical inheritance to get square and cube of a number

Learn about the hierarchical inheritance in C++, and implement a C++ program using the hierarchical inheritance.
[Last updated : March 02, 2023]

Hierarchical Inheritance in C++

In C++, hierarchical inheritance is defined as the inheritance that has a hierarchical structure of classes, in which a single base class can have multiple derived classes, and other subclasses can also inherit these derived classes.

This program will demonstrate example of hierarchical inheritance to get square and cube of a number in c++ programming language.

Hierarchical inheritance to get square and cube of a number program in C++

/*
C++ program to demonstrate example of hierarchical inheritance 
to get square and cube of a number.
*/

#include <iostream>
using namespace std;

class Number {
private:
    int num;

public:
    void getNumber(void)
    {
        cout << "Enter an integer number: ";
        cin >> num;
    }
    //to return num
    int returnNumber(void)
    {
        return num;
    }
};

//Base Class 1, to calculate square of a number
class Square : public Number {
public:
    int getSquare(void)
    {
        int num, sqr;
        num = returnNumber(); //get number from class Number
        sqr = num * num;
        return sqr;
    }
};

//Base Class 2, to calculate cube of a number
class Cube : public Number {
private:
public:
    int getCube(void)
    {
        int num, cube;
        num = returnNumber(); //get number from class Number
        cube = num * num * num;
        return cube;
    }
};

int main()
{
    Square objS;
    Cube objC;
    int sqr, cube;

    objS.getNumber();
    sqr = objS.getSquare();
    cout << "Square of " << objS.returnNumber() << " is: " << sqr << endl;

    objC.getNumber();
    cube = objC.getCube();
    cout << "Cube   of " << objS.returnNumber() << " is: " << cube << endl;

    return 0;
}

Output

Enter an integer number: 10
Square of 10 is: 100
Enter an integer number: 20
Cube   of 10 is: 8000