POINT2D.h

 #ifndef POINT2D_H
    #define POINT2D_H

    #include <iostream>

    class POINT2D
    {
    private:
        int m_nX;
        int m_nY;
    public:
        // a default constructor
        POINT2D()
            : m_nX(0), m_nY(0)
        {

        }
        // a specific constructor
        POINT2D(int nX, int nY)
            : m_nX(nX), m_nY(nY)
        {

        }

        // an overloaded output operator
        friend std::ostream& operator<< (std::ostream& out, const POINT2D &cPOINT)
        {
            out << "(" << cPOINT.getX() << ", " << cPOINT.getY() << ")";
            return out;
        }

        // access functions
        void setPOINT(int nX, int nY)
        {
            m_nX = nX;
            m_nY = nY;
        }

        int getX() const { return m_nX; }
        int getY() const { return m_nY; }
    };

    #endif