Question

I am getting an error saying that I can’t access private members x and y. How do I write the methods getX() and getY() so that they could see x and y? Thanks.

#include <iostream>
#include <string>
using namespace std;

class Point {
public:
    Point(int x, int y);
    Point();
    int getX();
    int getY();

private:
    int x, y;
};


int Point::getX() {
    return x;
}

int Point::getY() {
    return y;
}

void main () {

    Point p(5,5);
    Point g;

    cout << p.x << endl;
    cout << g.y;
    string s;
    cin >> s;

}

Answer 1

Um, you already have written getX and getY, you just need to use them:

cout << p.getX() << endl;
cout << g.getY();

---

Note that, because getX() and getY() don’t modify your class, they should be const:

class Point {
public:
    // ...

    int getX() const;
    int getY() const;

    // ...
};

// ...

int Point::getX() const {
    return x;
}

int Point::getY() const {
    return y;
}

// ...