text: #include <iostream>
  using namespace std;
  
  class Rectangle {
      	int width, height;
      public:
          void set_values (int,int);
          int area() {return width*height;}
  };
  
  void Rectangle::set_values (int x, int y) {
      width = x;
      height = y;
  }
  
  int main() {
      Rectangle rect;
      rect.set_values (3,4);
      cout << "area: " << rect.area() << endl;
      return 0;
  }    
  