simple and nested IF-ELSE-ENDIF statement in Easytrieve

 LIST ON
 DEFINE WS-FIVE W 5 N VALUE 5
 JOB INPUT NULL
 IF WS-FIVE EQ 5
    DISPLAY 'WS-FIVE IS 5'
 END-IF
 STOP

 LIST ON
 DEFINE WS-FIVE W 5 N VALUE 5
 JOB INPUT NULL
 IF WS-FIVE EQ 5
    DISPLAY 'WS-FIVE IS 5'
 ELSE 
    DISPLAY 'WS-FIVE IS NOT 5'
 END-IF
 STOP

 LIST ON
 DEFINE WS-NUM W 5 N VALUE 6
 JOB INPUT NULL
 IF WS-NUM EQ 5
    DISPLAY 'WS-NUM IS 5'
 ELSE 
    IF WS-NUM EQ 6
       DISPLAY 'WS-NUM IS 6'
    ELSE 
       DISPLAY 'WS-NUM IS NOT 5 OR 6'
    END-IF
 END-IF
 STOP