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# C++ Lecture 3 - C Lecture 3...

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C++ Lecture 3 http://www.cs.mun.ca/~gstarkes/3710/c++/lecture3.html 1 of 4 4/13/2009 5:28 PM C++ Lecture 3 [Previous Lecture] [Lecture Index] [Next Lecture] point.h #ifndef POINT_H # define POINT_H class Point { public: Point(int x, int y); int getX() const; int getY() const; void setX(int nx); void setY(int ny); void move(int dx, int dy); double distanceTo(const Point &p) const; /* ... */ private: int x, y; }; #endif /* POINT_H */ point.cc #include <math.h> #include "point.h" Point::Point(int x, int y) { Point::x = x; this->y = y; } double Point::distanceTo(const Point &p) const { double dx = x - p.getX(); double dy = y - p.getY(); return sqrt(dx * dx + dy * dy); } int Point::getX() const { return x; } int Point::getY() const { return y; } void Point::setY(int y) { this->y = y; } void

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C++ Lecture 3 http://www.cs.mun.ca/~gstarkes/3710/c++/lecture3.html 2 of 4 4/13/2009 5:28 PM Point::setX(int x) { this->x = x; } void Point::move(int dx, int dy) { x += dx; y += dy; } rect.h #ifndef RECT_H # define RECT_H # include "point.h" class Rect { public: Rect(int x, int y, int width, int height); void move(int dx, int dy); bool pointInside(const Point &p) const; // bad: exposes implementation details...
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