Introduction to Programming MCQs with Answers
Practice important Introduction to Programming MCQs with answers and explanations.
Multiple Choice Questions
Q541: Which operator is used to compare two Date objects to see if one is greater than the other?
- A: Date operator + (Date)
- B: Date operator > (Date)
- C: Date operator == (Date)
- D: Date operator - (Date)
View Answer
B
Q542: What is a key difference between pre-increment (++i) and post-increment (i++) operators in general?
- A: Pre-increment changes the value after usage
- B: Post-increment changes the value before usage
- C: Pre-increment changes the value before usage
- D: Post-increment changes the value after usage
View Answer
C
Q543: How would you handle the case when the left operand of the + operator is an integer and the right operand is a Date object?
- A: Implement a member function for +
- B: Implement a non-member friend function
- C: Use a macro for addition
- D: Use a global function
View Answer
B
Q544: Why is the daysOfMonth function used in the implementation of the ++ operator for the Date class?
- A: To determine if the current month has 30 days
- B: To find the number of days in the current month
- C: To calculate the number of days remaining in the year
- D: To check if the month is February
View Answer
B
Q545: Which of the following is a true statement about the Date class operator overloads?
- A: Operator overloads must always return a Date object
- B: Overloaded operators can return different types
- C: Only arithmetic operators can be overloaded
- D: All operators must be member functions
View Answer
B
Q546: What is the purpose of operator overloading in object-oriented programming?
- A: To make code look more complex
- B: To simplify and clean code
- C: To increase code execution speed
- D: To reduce the need for classes
View Answer
B
Q547: What does the default assignment operator in C++ perform?
- A: Shallow copy
- B: Deep copy
- C: Error checking
- D: None of the above
View Answer
A
Q548: What is a key issue when using the default assignment operator with objects that contain dynamic memory?
- A: It performs a deep copy
- B: It performs a shallow copy
- C: It can cause memory leaks
- D: It handles memory allocation errors
View Answer
C
Q549: In the String class example, what does the assignment operator need to do before copying the string?
- A: Allocate new memory for buf
- B: Print the current string
- C: Check the length of the string
- D: Delete the existing buffer
View Answer
A
Q550: How is self-assignment handled in the String class assignment operator?
- A: By ignoring the assignment
- B: By deleting the buffer twice
- C: By copying the buffer
- D: By checking if the object is the same
View Answer
D