#include <iostream>
#include <vector>
#include <cstdlib>

using namespace std;

class Shape {
public:
  Shape() {};
  void setColor() {
    cout << " Shape::setColor() called "<< endl;
  }
  void Draw() {  
    cout << " Shape::Draw() called "<< endl;
  }
  //..
};
class Rectangle : public Shape {
public:
  void Draw() {
    cout << " Rectangle::Draw() called "<< endl;
  }
};
class Oval  : public Shape {
public:
     void Draw() {
       cout << " Oval::Draw() called "<< endl;
     }
};
class RoundRect : public Shape {
public:
     void Draw() {
       cout << " RoundRect::Draw() called "<< endl;
     }
};
int main ()
{
  vector<Shape*> vecshape;  // vector with base-class pointers

  // add some concrete shapes
  vecshape.push_back( new Rectangle());
  vecshape.push_back( new Oval());
  vecshape.push_back( new Rectangle());
  vecshape.push_back( new RoundRect());
  vecshape.push_back( new Oval());
  vecshape.push_back( new Oval());

  for ( int i=0; i<vecshape.size(); i++ ){
    vecshape[i]->setColor( ); 
    vecshape[i]->Draw( );     
  }
}