Question

Pick the correct statement.

(a) Vectors have dynamic size whereas Array classes have a static size

(b) Both vectors and Array classes have a dynamic size

(c) Both vectors and Array classes have a static size

(d) Vectors have static size whereas Array classes have a dynamic size

This question was posed to me in unit test.

I need to ask this question from seq_con Vector Class in portion Class Hierarchies, Library & Containers of C++

Answer 1

The correct choice is (a) Vectors have dynamic size whereas Array classes have a static size

Explanation: Vectors are implemented in a way so that it can handle any number of elements at a time means the size of a vector can vary, whereas Array classes have fixed size.