#include <iostream>
#include <iomanip>
class Circle {
public:
// Constructor to initialize the radius
Circle(double radius) {
this->radius = radius;
}
// Method to calculate the area of the circle
double calculateArea() {
return 3.14159265359 * radius * radius; // Assuming Pi to be approximately 3.14159265359
}
// Method to calculate the circumference of the circle
double calculateCircumference() {
return 2.0 * 3.14159265359 * radius; // Assuming Pi to be approximately 3.14159265359
}
private:
double radius;
};
int main() {
double radius;
// Input the radius of the circle
std::cout << "\n\tArea of the Circle Using OOP Approach\n";
std::cout << "\n\tEnter the radius of the circle: ";
std::cin >> radius;
// Create a Circle object with the provided radius
Circle circle(radius);
// Calculate and display the area and circumference
double area = circle.calculateArea();
double circumference = circle.calculateCircumference();
std::cout << "\n\tThe Area of the circle: " <<std::fixed <<std::setprecision(2) << area << std::endl;
std::cout << "\tThe Circumference of the circle: " <<std::fixed <<std::setprecision(2) << circumference << std::endl;
std::cout << "\n\n\tEnd of Program. Thank you for using this program." << std::endl;
return 0;
}
