BASIC SYNTAX FOR WRITING CODE IN ABAP

•  Every statement must end with (.) period.
•  ABAP statement are not case sensitive. 

               Example:- data, Data, DATA. 

•  ABAP is space sensitive.
•   Strings are enclosed in a single quotes.

                 Example:- 'Hi'.

•   For providing comments * (or) " is used.
•   * -> Entire line( This should be provided at start of line).
•   " -> Middle of line or in the line ( can be given any location on line). 
•   CLRT+< is shortcut used for commenting multiple line at once.
•   CLRT+> is used to uncomment set of lines.