Question

Differentiate between single character constant and string constant

Answer 1

String constant is written in (" " )double quotes"

while character in single.(' ')

Answer 2

A character constant like '!' represents a single character. A string literal between double quotes usually represents multiple characters. A string literal like "!" seems to represent a single character, but it actually contains two: the ! you requested, and the \0 which terminates all strings in C.