Input
Output
#include <iostream> using namespace std; class circle { public: int area; circle(int radius) { area=3.14 * radius * radius; } circle(circle &ci) // copy constructor { area = ci.area; } }; int main() { circle c(20); cout << "Area of Circle: " << c.area << endl; circle c1(c); // Calling the copy constructor. cout << "Area of Circle: " << c1.area; return 0; }