Boolean literals: True and False are literals of the Boolean type that map to the true and false state, respectively.
Integer literals: Used to write values of types Int, uint, long, and ulong.
Real literals: Used to write values of types float, double, and dermal.
Character literals: Represents a single character and usually consists
of a character in quotes, such as ‘a’.
String literals: C# supports two types of string literals, a regular string literal and verbatim string literals. A regular string literal consists of zero or more characters enclosed in double quotes, such as “116110”. A verbatim string literal consists of an @ character followed by a double–quote character, such as ©” hello”.
The Null literal: Represents the null–type.