#ifndef EXAMPLE14_SHAPE_H
#define EXAMPLE14_SHAPE_H

#include <iostream>

class Shape {  // abstract class
protected:
    int x,y;
public:
    Shape() : x(0), y(0) {}
    Shape(int x, int y) : x(x), y(y) {}
    virtual double area() const = 0;   //abstract constant method
    virtual void print() const  = 0;   //abstract constant method
    virtual void relMove(int dx, int dy) {
        x+=dx;
        y+=dy;
    }
};







#endif //EXAMPLE14_SHAPE_H