/* Testing constant data members (TestConstantData.cpp) */
#include <iostream>
using namespace std;
 
class Point {
private:
   int x;
   const int y; // constant data member, cannot be modified by member functions
public:
   Point(int x = 0, int y = 0) : x(x), y(y) {  }  
      // init const data member via member initializer list
   int getX() const { return x; }
   int getY() const { return y; }
   void setX(int x) { this->x = x; }  // modify non-const data member x
// void setY(int y) { this->y = y; }  // error: assignment of read-only member
   void print() const { cout << "(" << x << "," << y << ")" << endl; }  // const
};