Constructors and Destructors (4)

25.

__________ used to make a copy of one class object from another class object of the same class type.

A.	constructor
B.	copy constructor
C.	destructor
D.	default constructor

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

26.

Which of the following statement is correct?

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.

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

27.

Which of the following gets called when an object goes out of scope?

A.	constructor
B.	destructor
C.	main
D.	virtual function

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

28.

A union that has no constructor can be initialized with another union of __________ type.

A.	different
B.	same
C.	virtual
D.	class

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

29.

A function with the same name as the class, but preceded with a tilde character (~) is called __________ of that class.

A.	constructor
B.	destructor
C.	function
D.	object

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

30.

Copy constructor must receive its arguments by __________ .

A.	either pass-by-value or pass-by-reference
B.	only pass-by-value
C.	only pass-by-reference
D.	only pass by address

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

31.

When are the Global objects destroyed?

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.

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

32.

Which of the following statement is incorrect?

A.	Constructor is a member function of the class.
B.	The compiler always provides a zero argument constructor.
C.	It is necessary that a constructor in a class should always be public.
D.	Both B and C.

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

1
2
3
4
5