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77 interview questions on C++for developers (2024)

Test your technical skills before an interview of C++ with 77 corrected questions. Beginner, Intermediate or Expert level.

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77 questions
Hard
3 votes277 runs0 comment

Which statement concerning constructors is false ?

Back-end developer
constructors
attributes
Samuelat Mar 28, 2022
Hard
2 votes400 runs0 comment

Write a C++ function that returns the sum of two integers.

Back-end developer
pointers
references
Abha Agrawaat Dec 3, 2021
Hard
2 votes396 runs0 comment

C++ is a general-purpose programming language. It was developed in the 1970s by Bjarne Stroustrup at Bell Labs.

Back-end developer
history
c++
Abha Agrawaat Dec 2, 2021
Hard
1 vote423 runs0 comment

Which of the following sets of code will cause a compile time error?

Back-end developer
c++
compile time error
Abha Agrawaat Dec 3, 2021
Hard
1 vote418 runs0 comment

What is the purpose of a static method in C++?

Back-end developer
c++
static
singleton
Abha Agrawaat Dec 3, 2021
Hard
1 vote404 runs0 comment

C++: what is the output of the following code? `std::cout << &obj << std::endl;`

Back-end developer
references
pointers
Abha Agrawaat Dec 3, 2021
Medium
1 vote377 runs0 comment

What is the output of the following C++ code?

Back-end developer
pointers
arrays
Abha Agrawaat Dec 3, 2021
Medium
1 vote368 runs0 comment

Write a C++ program that creates an array of 10 Person objects.

Back-end developer
array
constructor
Abha Agrawaat Apr 7, 2023
Medium
1 vote228 runs1 comment

The operator + has been defined for Complexe objects thanks to an intern overloading.

Back-end developer
operators
overloading
Samuelat Mar 5, 2024
Expert
1 vote209 runs0 comment

Write a C++ program that uses static variables.

Back-end developer
static
constructor
destructor
Samuelat Mar 28, 2022
Hard
1 vote144 runs0 comment

Write a C++ class with a constructor that takes two arguments.

Back-end developer
constructor
inheritance
Samuelat Mar 28, 2022
Medium
1 vote19 runs0 comment

What does the following code return ? int main() { int i = 1; int& j(i); i = 4; cout << j << endl; j = 6; cout << i << endl; return 0; }

Back-end developer
references
pointers
Samuelat Feb 27, 2023
Hard
1 vote14 runs0 comment

Write a C++ program that displays 111111.

Back-end developer
vector
references
Samuelat Feb 13, 2023
Hard
0 vote440 runs0 comment

What are templates in C++?

Back-end developer
templates
templates-c++
Abha Agrawaat Dec 3, 2021
Easy
0 vote427 runs0 comment

C++ code to check if a number is between 0 and N

Back-end developer
array
index
Abha Agrawaat Dec 3, 2021
Expert
0 vote426 runs0 comment

What is the difference between a function declaration and a function prototype in C++?

Back-end developer
c++
function
declaration
Abha Agrawaat Nov 21, 2021
Hard
0 vote424 runs1 comment

What is the result of the following code? #define CONSTANT 10; int main() { return CONSTANT; }

Back-end developer
preprocessor
header
constants
Abha Agrawaat Nov 8, 2023
Easy
0 vote423 runs0 comment

Undefined

Back-end developer
c++
Abha Agrawaat Dec 2, 2021
Hard
0 vote419 runs1 comment

What is the purpose of the keyword `register` in C++?

Back-end developer
c++
registers
Abha Agrawaat Nov 25, 2021
Hard
0 vote418 runs1 comment

What is the value of a pointer to a function that has not been defined?

Back-end developer
pointers
memory
Abha Agrawaat Mar 5, 2024
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