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- Question
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.
- Correct Answer
- It describes "kind of" relationships.
- 1. Which of the following statement is correct regarding destructor of base class?
Options- A. Destructor of base class should always be static.
- B. Destructor of base class should always be virtual.
- C. Destructor of base class should not be virtual.
- D. Destructor of base class should always be private. Discuss
- 2. Which of the following access specifies is used in a class definition by default?
Options- A. Protected
- B. Public
- C. Private
- D. Friend Discuss
- 3. Which of the following statements is correct when a class is inherited publicly?
Options- A. Public members of the base class become protected members of derived class.
- B. Public members of the base class become private members of derived class.
- C. Private members of the base class become protected members of derived class.
- D. Public members of the base class become public members of derived class. Discuss
- 4. Which of the following statements are correct for a static member function?
- It can access only other static members of its class.
- It can be called using the class name, instead of objects.
Options- A. Only 1 is correct.
- B. Only 2 is correct.
- C. Both 1 and 2 are correct.
- D. Both 1 and 2 are incorrect. Discuss
- 5. Which of the following statement is correct with respect to the use of friend keyword inside a class?
Options- A. A private data member can be declared as a friend.
- B. A class may be declared as a friend.
- C. An object may be declared as a friend.
- D. We can use friend keyword as a class name. Discuss
- 6. 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. Discuss
- 7. Which of the following also known as an instance of a class?
Options- A. Friend Functions
- B. Object
- C. Member Functions
- D. Member Variables Discuss
- 8. Which of the following can be overloaded?
Options- A. Object
- B. Functions
- C. Operators
- D. Both B and C Discuss
- 9. 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. Discuss
- 10. 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. Discuss
Objects and Classes problems
Search Results
Correct Answer: Destructor of base class should always be virtual.
Correct Answer: Private
Correct Answer: Public members of the base class become public members of derived class.
Correct Answer: Both 1 and 2 are correct.
Correct Answer: A class may be declared as a friend.
Correct Answer: The program reports linker error.
Correct Answer: Object
Correct Answer: Both B and C
Correct Answer: It will compile succesfully.
Correct Answer: A class object and a member of that class.
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