Constructors and Destructors problems
- 1. A destructor takes __________ arguments.
Options- A. one
- B. two
- C. three
- D. no Discuss
Correct Answer: no
- 2. For automatic objects, constructors and destructors are called each time the objects
Options- A. enter and leave scope
- B. inherit parent class
- C. are constructed
- D. are destroyed Discuss
Correct Answer: enter and leave scope
- 3. Which of the following statement is correct?
Options- A. A destructor has the same name as the class in which it is present.
- B. A destructor has a different name than the class in which it is present.
- C. A destructor always returns an integer.
- D. A destructor can be overloaded. Discuss
Correct Answer: A destructor has the same name as the class in which it is present.
- 4. Which of the following statement is correct?
Options- A. A constructor has the same name as the class in which it is present.
- B. A constructor has a different name than the class in which it is present.
- C. A constructor always returns an integer.
- D. A constructor cannot be overloaded. Discuss
Correct Answer: A constructor has the same name as the class in which it is present.
- 5. Which of the following statement is correct?
Options- A. Destructor destroys only integer data members of the object.
- B. Destructor destroys only float data members of the object.
- C. Destructor destroys only pointer data members of the object.
- D. Destructor destroys the complete object. Discuss
Correct Answer: Destructor destroys the complete object.
- 6. Can a class have virtual destructor?
Options- A. Yes
- B. No Discuss
Correct Answer: Yes
- 7. Which of the following statements are correct?
Options- A. Constructor is always called explicitly.
- B. Constructor is called either implicitly or explicitly, whereas destructor is always called implicitly.
- C. Destructor is always called explicitly.
- D. Constructor and destructor functions are not called at all as they are always inline. Discuss
Correct Answer: Constructor is called either implicitly or explicitly, whereas destructor is always called implicitly.
- 8. Which of the following statement is correct about destructors?
Options- A. A destructor has void return type.
- B. A destructor has integer return type.
- C. A destructor has no return type.
- D. A destructors return type is always same as that of main(). Discuss
Correct Answer: A destructor has no return type.
- 9. It is a __________ error to pass arguments to a destructor.
Options- A. logical
- B. virtual
- C. syntax
- D. linker Discuss
Correct Answer: syntax
- 10. Which of the following statement is correct?
Options- A. A constructor of a derived class can access any public and protected member of the base class.
- B. Constructor cannot be inherited but the derived class can call them.
- C. A constructor of a derived class cannot access any public and protected member of the base class.
- D. Both A and B. Discuss
Correct Answer: Both A and B.
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