The simple IF statement makes a yes/no decision

Any time execution encounters the simple IF statement, a choice is made whether or not to execute the enclosed set of statements:



IF control_expression

Statement 1
Statement 2
…
ENDIF
• If control_expression tests true, execute the set of statements between the IF and the ENDIF.
• If control_expression tests false, skip all the statements and continue execution with whatever comes after the ENDIF.
• IF is not a loop. When the simple IF statement is encountered, the set of enclosed statements is only executed once, or not at all.