# Comments Multi-line comments start with the /* pair of symbols and end with the */ one. Such kind of comments cannot be nested. Single-line comments begin with the // pair of symbols and end with the newline character, they can be nested in other multi-line comments. Comments are allowed everywhere where the spaces are allowed, they can have any number of spaces in them. Examples: ``` //--- Single-line comment /*  Multi-     line         // Nested single-line comment     comment */ ```