C++ Programming Quiz

Which of the following is the correct way to declare a constant in C++?

• int const x = 10;

• const int x = 10;

• #define x 10

• All of the above

What is the default access specifier for members of a class in C++?

• public

• private

• protected

• internal

Which operator is used to resolve the scope of a class or namespace in C++?

• ->

• .

• ::

• :

What is the output of the following code? int a = 5, b = 2; cout << a / b;

• 2.5

• 2

• 3

• Error

Which feature of OOP allows the same function to behave differently on different classes?

• Encapsulation

• Inheritance

• Polymorphism

• Abstraction

Which of the following is a correct syntax to create a pointer in C++?

• int *ptr;

• int &ptr;

• int ptr*;

• pointer int ptr;

What is the return type of the main() function in C++?

• void

• int

• float

• char

Which STL container stores elements in a key-value pair?

• vector

• list

• map

• stack

How do you comment a single line in C++?

• /* comment */

• // comment

• ** comment

• -- comment

Which of the following allows dynamic memory allocation in C++?

• malloc

• calloc

• new

• realloc