Introduction to Programming MCQs with Answers
Practice important Introduction to Programming MCQs with answers and explanations.
Multiple Choice Questions
Q551: Which keyword is used to refer to the calling object inside a member function?
- A: self
- B: this
- C: current
- D: object
View Answer
B
Q552: What does the this pointer refer to?
- A: The member variable of the class
- B: The address of the calling object
- C: The address of the member function
- D: The return value of the function
View Answer
B
Q553: What is the correct way to ensure that an assignment operator supports chained assignments?
- A: Use a return type of void
- B: Use a return type of String
- C: Use a return type of int
- D: Return a reference to the calling object
View Answer
B
Q554: How should an assignment operator be modified to handle self-assignment safely?
- A: By copying the memory to a new location
- B: By adding a check for self-assignment
- C: By using a different constructor
- D: By using a different destructor
View Answer
B
Q555: What is the benefit of returning *this in the assignment operator?
- A: It allows the assignment to be chained
- B: It optimizes memory usage
- C: It reduces the execution time
- D: It makes the code more readable
View Answer
A
Q556: What is the default behavior when declaring an array of objects without explicit initialization?
- A: All objects are initialized with the parameterized constructor.
- B: All objects are initialized with the default constructor.
- C: Only the first object is initialized; others are uninitialized.
- D: No constructor is called for any objects.
View Answer
B
Q557: In the declaration Date myDate[10] = { Date(09, 03, 1970), Date(08, 23, 1974) };, which constructor is called for myDate[2] to myDate[9]?
- A: Parameterized constructor with three int parameters.
- B: Parameterless constructor.
- C: A copy constructor is called.
- D: A destructor is called.
View Answer
B
Q558: When using dynamic arrays of objects, which operator is used to allocate memory?
- A: delete
- B: calloc
- C: malloc
- D: new
View Answer
D
Q559: Which of the following is true about overloading new and delete operators?
- A: They only change the deallocation part of memory management.
- B: They only change the allocation part of memory management.
- C: They change both allocation and deallocation parts of memory management.
- D: They cannot alter the sequence of constructor and destructor calls.
View Answer
C
Q560: What is the purpose of overloading the [] operator in a class?
- A: To check the validity of the index when accessing array elements.
- B: To change the default constructor behavior.
- C: To provide a new memory allocation strategy.
- D: To handle dynamic memory allocation differently.
View Answer
A