Mega Code Archive
Initialize parameters in base class
<![CDATA[
#include <iostream.h>
class Pointer
{
private:
long x,y;
public:
Pointer(long a=0,long b=0) {
x=a;
y=b;
}
long GetX(){
return x;
}
long GetY(){
return y;
}
void Disp(){
cout << "x=" <<x<<" y="<<y;
}
};
class Pointer3D : public Pointer
{
long z;
public:
Pointer3D(long a=0,long b=0,long c=0):Pointer(a,b){
z=c;
}
long GetZ(){ return z;}
void Disp()
{
cout <<"x= "<<GetX()<<" y="<<GetY();
cout << " z="<< z <<endl;
}
};
main()
{
Pointer3D p1;
Pointer3D p2(3,-4);
p2.Disp();
p2=p1;
p2.Disp();
return 0;
}
x= 3 y=-4 z=0
x= 0 y=0 z=0
]]>