Given the program, which of the following class member accesses are legal?

Question

```
#include using namespace std; class DayOfYear { public: void input(); void output(); // other public members private: int month; int day; // other private members
}; int main() {
DayOfYear birthDay;
birthDay.input(); // a)
birthDay.day = 25; // b)
cout << birthDay.month; // c)
cout << birthDay.output(); // d)
if(birthDay.month == 1) // e)
cout << "January\n";
}
```

Answer 1

Actual compiler error messages follow:
```
Error b): 'DayOfYear::day' is not
accessible in function main()
Error c): 'DayOfYear::month' is not
accessible in function main()
Error e): 'DayOfYear::month' is not
accessible in function main()
```

The declaration of birthDay as a DayOfYear object is OK. a) and d) are accesses to a public input and output functions. b) attempts to write a private member, c) and e) attempt to fetch a value from a private member month. In d), output is public, so d) is OK