Question

Write a program in C++ using object oriented programming technique to find area of circle.

Answer 1

#include <iostream>
using namespace std;

class Circle {
    float radius;
public:
    void getRadius() {
        cout << "Enter radius: ";
        cin >> radius;
    }
    void calculateArea() {
        float area = 3.14 * radius * radius;
        cout << "Area of Circle: " << area;
    }
};

int main() {
    Circle c1;
    c1.getRadius();
    c1.calculateArea();
    return 0;
}