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Home C++ Programming Constructors and Destructors Comments

  • Question
  • 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.

  • Correct Answer
  • Constructor is called either implicitly or explicitly, whereas destructor is always called implicitly. 


  • Constructors and Destructors problems


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    • 1. Can a class have virtual destructor?

    • Options
    • A. Yes
    • B. No
    • Discuss
    • 2. 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
    • 3. 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
    • 4. 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
    • 5. 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
    • 6. 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
    • 7. It is a __________ error to pass arguments to a destructor.

    • Options
    • A. logical
    • B. virtual
    • C. syntax
    • D. linker
    • Discuss
    • 8. 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
    • 9. Destructors __________ for automatic objects if the program terminates with a call to function exit or function abort.

    • Options
    • A. are called
    • B. are inherited
    • C. are not called
    • D. are created
    • Discuss
    • 10. A class's __________ is called when an object is destroyed.

    • Options
    • A. constructor
    • B. destructor
    • C. assignment function
    • D. copy constructor
    • Discuss


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