C++: Introduction

Question 1

What are the file extensions used for c++ files?

Answer 1

cpp and hpp

Question 2

What does the “this” keyword refer to?

Answer 2

a pointer to the current object.

Question 3

What are static class members?

Answer 3

A member of the class that is shared by all objects of the class, can be an attribute or a method.

Question 4

What is the difference between the size and the capacity of a vector container?

Answer 4

The size of a vector is the amount of elements it currently holds, the capacity refers to the number of elements that it can hold in its current state without having to reallocate memory.