C++ Array Type

Declaring an Array of std::string

• std::string A[] = {"what", "is", "the", "size", "of", "this", "array?"}; declares an array of std::string, where each element is of type std::string.

Understanding the Type of Expression A

• The expression A refers to the fourth element of the array A (since array indices in C++ are zero-based).
• Given the type of A is an array of std::string, the type of A is std::string.

Analysis of Options

• const char*: refers to a pointer to a constant character array, which is not the case here since the elements of A are std::string objects, not C-style strings.
• std::string: each element in the array A is of type std::string, and hence A is of type std::string.
• char[]: suggests an array of characters, which is also not the case since the elements of A are std::string objects, not character arrays.
• none of the other choices: this option is incorrect because we have already identified the correct choice as std::string.

Determine the type of the expression A in the given C++ code. Learn how to break down the code and identify the type of elements within the array.