Object Oriented Programming MCQs with Answers
Practice important Object Oriented Programming MCQs with answers and explanations.
Chapter: 33
Q521:
What error is shown if my_cast is called without specifying the type parameter?
A. Compilation error
B. Runtime error
C. Logical error
D. No error
Correct Answer:
A
Chapter: 33
Q522:
Which solution is the most elegant for case-sensitive and case-insensitive string comparison?
A. Writing two separate functions
B. Using a single function with a boolean parameter
C. Overloading functions
D. Using a template with policy classes
Correct Answer:
D
Chapter: 33
Q523:
What does the function isEqual< const char* >( const char* x, const char* y ) do?
A. Compares two integer values
B. Compares two strings
C. Compares two characters
D. Converts strings to integers
Correct Answer:
B
Chapter: 33
Q524:
In the compare function, what is the default comparison type if no template argument is provided?
A. CaseSenCmp
B. NonCaseSenCmp
C. Both CaseSenCmp and NonCaseSenCmp
D. None of the above
Correct Answer:
A
Chapter: 33
Q525:
The statement void printArray( T* array, int size ) in the function template uses which keyword to handle multiple data types?
A. class
B. typename
C. template
D. auto
Correct Answer:
C
Chapter: 33
Q526:
What is the primary benefit of using function templates over function overloading?
A. Function templates provide code specialization
B. Function templates work with many data types
C. Function templates are less readable
D. Function templates require more code
Correct Answer:
B
Chapter: 34
Q527:
What is the purpose of the printArray function template?
A. Print single values only
B. Print arrays only
C. Print both single values and arrays
D. Print only specific data types
Correct Answer:
C
Chapter: 34
Q528:
What type of programming does the find function use to handle different data types?
A. Procedural programming
B. Object-oriented programming
C. Generic programming
D. Functional programming
Correct Answer:
C
Chapter: 34
Q529:
In the find function, what does the beyond parameter represent?
A. The end of the container
B. The start of the container
C. A specific element in the container
D. The size of the container
Correct Answer:
A
Chapter: 34
Q530:
Which of the following statements about the find function is TRUE?
A. It only works with arrays of integers
B. It can work with different data types
C. It always returns a pointer to zero
D. It requires a fixed-size container
Correct Answer:
B
Chapter: 34
Q531:
What does the T* return type in the find function template signify?
A. It returns the index of the found element
B. It returns a pointer to the found element
C. It returns a boolean value
D. It returns the size of the container
Correct Answer:
B
Chapter: 34
Q532:
The Vector class template is used to store data elements of which type?
A. Only built-in data types
B. Only user-defined data types
C. Both built-in and user-defined types
D. Only arrays
Correct Answer:
C
Chapter: 34
Q533:
Which method in the Vector class template is used to access elements at a specific index?
A. getSize()
B. operator[]
C. operator=
D. Vector()
Correct Answer:
B
Chapter: 34
Q534:
In the Vector class template, which constructor initializes the vector with a given size?
A. Vector<T>(const Vector<T>&)
B. Vector<T>(int s)
C. ~Vector<T>()
D. Vector<T>(int s)
Correct Answer:
B
Chapter: 34
Q535:
What will happen if you attempt to access an element with an index out of range in the Vector class?
A. The program will terminate with an error message
B. The element will be default-initialized
C. The program will ignore the request
D. The program will loop indefinitely
Correct Answer:
A
Chapter: 34
Q536:
What is the primary benefit of using templates in C++?
A. They allow for type-safe operations with multiple data types
B. They make code more readable
C. They improve execution speed
D. They reduce memory usage
Correct Answer:
A
Chapter: 34
Q537:
The find function template requires which two operations to be supported by its container?
A. Increment and addition
B. Decrement and multiplication
C. Increment and dereference
D. Addition and multiplication
Correct Answer:
C
Chapter: 34
Q538:
How is the find function improved to handle containers other than arrays?
A. By using pointer notation
B. By removing pointer notation
C. By using fixed-size containers
D. By using only integer containers
Correct Answer:
B
Chapter: 34
Q539:
What does the operator= method do in the Vector class template?
A. Copies the vector and its contents to another vector
B. Deletes the vector and its contents
C. Returns the size of the vector
D. Initializes the vector
Correct Answer:
A
Chapter: 35
Q540:
What is the purpose of member templates in a template class?
A. To allow member functions to be templated
B. To make class constructors private
C. To restrict access to data members
D. To enforce type safety in member functions
Correct Answer:
A