#include
#include
using namespace std;
class Rectangle {
int x, y;
public:
void set_values (int,int);
int area (void) {return (x*y);}
};
void Rectangle::set_values (int a, int b) {
x = a;
y = b;
}
int main () {
Rectangle rect;
rect.set_values (3,4);
cout << "area: " << rect.area();
return 0;
}
area: 12"