Constructors and Destructors problems
- 1. __________ used to make a copy of one class object from another class object of the same class type.
Options- A. constructor
- B. copy constructor
- C. destructor
- D. default constructor Discuss
Correct Answer: copy constructor
- 2. A __________ is a constructor that either has no parameters, or if it has parameters, all the parameters have default values.
Options- A. default constructor
- B. copy constructor
- C. Both A and B
- D. None of these Discuss
Correct Answer: default constructor
- 3. Which of the following statement is correct about constructors?
Options- A. A constructor has a return type.
- B. A constructor cannot contain a function call.
- C. A constructor has no return type.
- D. A constructor has a void return type. Discuss
Correct Answer: A constructor has no return type.
- 4. Constructors __________ to allow different approaches of object construction.
Options- A. cannot overloaded
- B. can be overloaded
- C. can be called
- D. can be nested Discuss
Correct Answer: can be overloaded
- 5. How many default constructors per class are possible?
Options- A. Only one
- B. Two
- C. Three
- D. Unlimited Discuss
Correct Answer: Only one
- 6. To ensure that every object in the array receives a destructor call, always delete memory allocated as an array with operator __________ .
Options- A. destructor
- B. delete
- C. delete[]
- D. kill[]
- E. free[] Discuss
Correct Answer: delete[]
- 7. Which of the following gets called when an object goes out of scope?
Options- A. constructor
- B. destructor
- C. main
- D. virtual function Discuss
Correct Answer: destructor
- 8. Which of the following cannot be declared as virtual?
Options- A. Constructor
- B. Destructor
- C. Data Members
- D. Both A and C Discuss
Correct Answer: Both A and C
- 9. Which of the following are NOT provided by the compiler by default?
Options- A. Zero-argument Constructor
- B. Destructor
- C. Copy Constructor
- D. Copy Destructor Discuss
Correct Answer: Copy Destructor
- 10. Destructor has the same name as the constructor and it is preceded by ______ .
Options- A. !
- B. ?
- C. ~
- D. $ Discuss
Correct Answer: ~
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