//
// worksheet 1
//
#include <iostream>

using namespace std;

class Rectangle
{
	float length, width;
public:
	
	Rectangle() (length = 0 , width = 0);
	Rectangle (float len, float wid)
	{ length = len; width = wid; }
	void Set (float len, float wid)
	{ length = len; width = wid; }
	float Area() const
	{ return length*width;}
	void Print() const
	{	cout <<"Length: \t" << length << endl;
		cout <<"Width: \t" << width  << endl;
		cout <<"Area: \t" << Area() << endl;
	}

int main ()
{	
	Rectangle rec1, rec2;
	rec1.Set (length = 2, width=3);
	rec2.Set (length = 0, width=0);
	float l,w;

	rec2.Set (lenght = 1, width = 5)
	rec2.Print();
	
	cout <<"Input length: " ;
	cin >> l ;
	while( l >=0 && w<=0 )
	{
		cout <<"Input width: ";
		cin >> w ;
		cout <<"Length = " << l << endl;
		cout <<"Width = " << w << endl; 
	else
		cout << "ERROR!!" << endl;
	}

	cout <<"Input length: " ;
	cin >> l ;
	
	cout <<"Area of rectangle 1 = ";
	rec1.Pint();
	cout <<"Area of rectangle 2 = ";
	rec2.Print();
		

	cout << "\n\n---------------------------\nDone.\n\n";
	return 0;
}