Thread: inheritence problem

hi i have a problem with this example that i copy online and is not working can someone help me

Code:

#include<stdio.h>
#include<conio.h>
#include<iostream>
using namespace std;
class person
{
     
  public:
            
            int age;
           person(int age){ this -> age =age;}
  
};

class basketballplayer:public person 
{
             public:
             int point;
             int steal;
            basketballplayer(int point, int steal, int age):person(age)
             {
              this -> point = point;
              this -> steal = steal;
             
             };
             
     
};

main()
{
      basketballplayer tony; //why  is this not working
      tony.age=11;
    
     getch(); 
}

what is instantiated tony