Class of Segment

Class Line
{
Double x1, y1;
Double x2, y2;
Public
Line (double x1, double y1, double x2, double y2)
{
this->x1 = x1;
this->x2 = x2;
this->y1 = y1;
This->y2 = y2;
}
Double getx1 () {return x1;}
Double getx2 () {return x2;}
Double Gety1 () {return y1;}
Double Gety2 () {return y2;}
void Show ()
{
cout << "length=" << length (*this);
Length (line L) This is a pointer to the line class length (line) that needs to pass the member variable of the This object
THIS->GETX2 ();
}

};

Double Length (line L)
{

return sqrt ((L.GETX1 ()-L.GETX2 ()) * (L.GETX1 ()-l.getx2 ()) +
(L.gety1 ()-L.gety2 ()) * (L.gety1 ()-L.gety2 ()));
}

int _tmain ()
{
Line R1 (1.0, 8.0, 5.0, 2.0);
R1.show ();
return 0;
}

Class of Segment