objects-and-classes cpp-programming question and answers -Page 2

CuriousTab

1. What does a class hierarchy depict?
Options
A. It shows the relationships between the classes in the form of an organization chart.
B. It describes "has a" relationships.
C. It describes "kind of" relationships.
D. It shows the same relationship as a family tree.

2. Which of the following statements is correct about the program given below?

class CuriousTab
{
    public:
    static void MyFunction();
};
int main()
{
    void(*ptr)() = &CuriousTab::MyFunction;
    return 0; 
}

Options
A. The program reports an error as pointer to member function cannot be defined outside the definition of class.
B. The program reports an error as pointer to static member function cannot be defined.
C. The program reports an error as pointer to member function cannot be defined without object.
D. The program reports linker error.

5. What happens when we try to compile the class definition in following code snippet?
```
class Birds {};
class Peacock : protected Birds {};
```
Options
A. It will not compile because class body of Birds is not defined.
B. It will not compile because class body of Peacock is not defined.
C. It will not compile because a class cannot be protectedly inherited from other class.
D. It will compile succesfully.

6. Which of the following two entities (reading from Left to Right) can be connected by the dot operator?
Options
A. A class member and a class object.
B. A class object and a class.
C. A class and a member of that class.
D. A class object and a member of that class.

7. Which of the following is the only technical difference between structures and classes in C++?
Options
A. Member function and data are by default protected in structures but private in classes.
B. Member function and data are by default private in structures but public in classes.
C. Member function and data are by default public in structures but private in classes.
D. Member function and data are by default public in structures but protected in classes.

9. Which of the following can access private data members or member functions of a class?
Options
A. Any function in the program.
B. All global functions in the program.
C. Any member function of that class.
D. Only public member functions of that class.

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