c++ - I am having trouble understanding why does the output change after removing a variable from a subclass -

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hello in code below output "a", don't understand why output (the 'value' variable) changes "b" after removing value variable subclass b

#include <iostream> #include <string>  using namespace std;  class { public:      string value;     a(){         value = "a";     }      void display(){         cout<<value<<endl;     }  };  class b : public a{ public:      string value;     b(){         value = "b";     }   };  int main(){     *c = new b();     c->display();  }

when both classes have variable named value b constructor refers b::value.

after removed b, started referring a::value, , assigning it.

make variables a::value private, , you'll see compiler complain try access inaccessible member variable.


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