point.h

有关C++编程学习的习题和答案,<<C++程序设计>>谭浩强第三版。

//习题12.1中的point.h头文件
//POINT.H
class Point
{public:
  Point(float=0,float=0);
  void setPoint(float,float);
  float getX() const {return x;}
  float getY() const {return y;}
  friend ostream & operator<<(ostream &,const Point &);
 protected:
  float x,y;
};