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- Question
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
- Correct Answer
- enter and leave scope
- 1. A destructor takes __________ arguments.
Options- A. one
- B. two
- C. three
- D. no Discuss
- 2. Which of the following statements is correct?
- Change a reference changes the referent.
- We can create an array of references.
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
- 3. Which of the following statements is correct?
- Pointer to a reference and reference to a pointer both are valid.
- When we use reference, we are actually referring to a referent.
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
- 4. Which of the following statement is correct?
Options- A. An array of references is acceptable.
- B. Once a reference variable has been defined to refer to a particular variable it can refer to any other variable.
- C. An array of references is not acceptable.
- D. Reference is like a structure. Discuss
- 5. Which of the following statements is correct?
- A reference is not a constant pointer.
- A referenced is automatically de-referenced.
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
- 6. 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
- 7. 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
- 8. 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
- 9. Can a class have virtual destructor?
Options- A. Yes
- B. No Discuss
- 10. 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
Constructors and Destructors problems
Search Results
Correct Answer: no
Correct Answer: Only 1 is correct.
Correct Answer: Both 1 and 2 are correct.
Correct Answer: An array of references is not acceptable.
Correct Answer: Only 2 is correct.
Correct Answer: A destructor has the same name as the class in which it is present.
Correct Answer: A constructor has the same name as the class in which it is present.
Correct Answer: Destructor destroys the complete object.
Correct Answer: Yes
Correct Answer: Constructor is called either implicitly or explicitly, whereas destructor is always called implicitly.
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