//
//	Define a Circle class
//

#include <iostream>

using namespace std;

class Circle
{
	float rad;
public:
	Circle()
	{	rad = 0;    }
	Circle(float r)
	{	rad = r;    }
	void Set(float r)
        {       rad = r;    }
	float Area() const
	{	return 3.14  * ( rad * rad ) ;     }
	float Perimeter() const
	{	return 2 * 3.14  * rad;	}	

void Print() const
	{	cout << "Circle: (" << rad << "), area: "
			<< Area() << ", Perimeter: " << Perimeter() << 
endl;
	}
};

// test the class by using the driver code
int main()
{
	// Q1: declare an object cir?
	Circle cir;	// (0, 0)
	// Q2: output the info on cir?
	cir.Print();
	// Q3: declare an object it with initialization of 2?
	Circle it(2);
	it.Print();
	// Q4: Make cir have the same value as it?
	cir = it;
	cout << "\nThe object - cir: ";
	cir.Print();
	// Q5: change it to rad 5?
	it.Set(5);
	it.Print();	

	return 0;
}