A simple class called Point, with all necessary functions

A simple class called Point, with all necessary functions

# include< iostream.h>
# include< conio.h>
# include< math.h>

class point
{
int x,y,z;
public:
point()
{
x=y=z=0;
}
point(int i,int j,int k)
{
x=i;
y=j;
z=k;
}
point(point &a)
{
x=a.x;
y=a.y;
z=a.z;
}

negate()
{
x=-x;
y=-y;
z=-z;
}
void print()
{
cout<<"("<< x<<","<< y<<","<< z<< ")";
}
int norm()
{
return(sqrt(x*x+y*y+z*z));
}
};
void main()
{
clrscr();
point p(2,3,4),p1(p);

cout<<"The point has the coordinates ";
p.print();
cout<< "The point coordinates after negation ";
p.negate();
p.print();
cout<< "Normal Distance of the point from (0,0,0) is "<< p.norm();
cout<<"The coordinates of the point p1 after copy constructor is ";
p1.print();
getch();
}