CHARACTER LITERALS

In the previous constructor (num character) we used the character literal ' ' for a single character that is a blank.
Distinct from the string literal " ".
The type of ' ' is char.
The type of " " is an array of const char with one more element than the number of characters in the literal (the '\0' null character).

In the previous constructor (num character) we used the character literal ' ' for a single character that is a blank.