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Home C++ Programming Constructors and Destructors Comments

  • Question
  • Which of the following implicitly creates a default constructor when the programmer does not explicitly define at least one constructor for a class?


  • Options
  • A. Preprocessor
  • B. Linker
  • C. Loader
  • D. Compiler

  • Correct Answer
  • Compiler 


  • Constructors and Destructors problems


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    • 1. Which of the following statement is correct?

    • Options
    • A. Constructor has the same name as that of the class.
    • B. Destructor has the same name as that of the class with a tilde symbol at the beginning.
    • C. Both A and B.
    • D. Destructor has the same name as the first member function of the class.
    • Discuss
    • 2. When are the Global objects destroyed?

    • Options
    • A. When the control comes out of the block in which they are being used.
    • B. When the program terminates.
    • C. When the control comes out of the function in which they are being used.
    • D. As soon as local objects die.
    • Discuss
    • 3. If the programmer does not explicitly provide a destructor, then which of the following creates an empty destructor?

    • Options
    • A. Preprocessor
    • B. Compiler
    • C. Linker
    • D. main() function
    • Discuss
    • 4. Destructor has the same name as the constructor and it is preceded by ______ .

    • Options
    • A. !
    • B. ?
    • C. ~
    • D. $
    • Discuss
    • 5. 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
    • 6. Which of the following never requires any arguments?

    • Options
    • A. Member function
    • B. Friend function
    • C. Default constructor
    • D. const function
    • Discuss
    • 7. How many times a constructor is called in the life-time of an object?

    • Options
    • A. Only once
    • B. Twice
    • C. Thrice
    • D. Depends on the way of creation of object
    • Discuss
    • 8. Which of the following statement is correct whenever an object goes out of scope?

    • Options
    • A. The default constructor of the object is called.
    • B. The parameterized destructor is called.
    • C. The default destructor of the object is called.
    • D. None of the above.
    • Discuss
    • 9. Which of the following gets called when an object is being created?

    • Options
    • A. constructor
    • B. virtual function
    • C. destructor
    • D. main
    • Discuss
    • 10. Which constructor function is designed to copy objects of the same class type?

    • Options
    • A. Create constructor
    • B. Object constructor
    • C. Dynamic constructor
    • D. Copy constructor
    • Discuss


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