Please see my source code !! Its not giving me the satisfying answer !! Please tell me what is the error

Question

#include<iostream>
using namespace std;
class test {
int a,b;
public:
void getdata(int x,int y ) {
a=x;
b=y;
}
int geta() {
return a;
}
int getb() {
return b;
}
void show() {
cout<<a<<endl<<b<<endl;
}

};
class exam : public test {
int c;
public:

void mul() {
c=geta()*getb();
}
void disp() {
cout<<c<<endl;
}

};
int main()
{ test o;
o.getdata(2,66);
o.show();
exam x;
x.mul();
x.disp();

return 0;
}
Output :
2
66
0

Answer 1

X variable in main function :
Call the x.getdata() to assign value to its class variables
Then call the mul() and disp()

Answer 2

Thanks 😊😊