Question

The difference between x and ‘x’ is?

(a) The first one refers to a variable whose identifier is x and the second one refers to the character constant x

(b) The first one is a character constant x and the second one is the string literal x

(c) Both are same

(d) Both are string literal

I had been asked this question in exam.

This key question is from Constants topic in portion Types, Pointers, Arrays & Structures in C++ of C++

Answer 1

The correct answer is (a) The first one refers to a variable whose identifier is x and the second one refers to the character constant x

For explanation: In a C++ code, names with quotes like ‘x’ represent a character or string(in case of a collection of characters) whereas without quotes they represent an identifier.