The compound IF statement gives two choices (once)

Any time execution encounters a compound IF statement, one of two sets of statements are chosen:

IF control_expression

A first set of one or more statements …
ELSE
A second set of one or more statements …
ENDIF
• If control_expression tests true,execute the first set of statements, once.
• If control_expression tests false,execute the second set of statements, once.
• When this style IF statement is encountered, one or the other of the sets of statements is done.
• Never both sets of statements; never no set
• Always one set or the other

this set if

true

this set if

false