Writing a simple class in C++

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 namespac开发者_JAVA百科e 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;

}

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;
}

// ...

Shouldn't it be

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

You can't access x and y, as they're private. However, you've made getX and getY public, so your code would look like this:

cout << p.getX() << endl;
cout << g.getY();
string s;
cin >> s;

Point::getX() and Point::getY() actually see x respectively y - the error is in your main, where you try to access them directly, without using the getters you made exactly for this purpose.

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

Seems like you've solved the problem of writing the functions yourself. Now all you have to do is change your main to call those functions:

// note the proper return type
int main() {
   Point p(5,5);
   cout << p.getX() << endl;
   // more code
   return 0;
}

Your get_ methods are correct. The problem is that you are not using them in your main function! Try this:

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