Another example of "Hello World" style programs is FizzBuzz.
DEFINE VARIABLE i AS INTEGER NO-UNDO.
DEFINE VARIABLE cOut AS CHARACTER NO-UNDO.
DO i = 1 TO 100:
/* Dividable by 3: fizz */
IF i MODULO 3 = 0 THEN
cOut = "Fizz".
/* Dividable by 5: buzz */
ELSE IF i MODULO 5 = 0 THEN
cOut = "Buzz".
/* Otherwise just the number */
ELSE
cOut = STRING(i).
/* Display the output */
DISPLAY cOut WITH FRAME x1 20 DOWN.
/* Move the display position in the frame down 1 */
DOWN WITH FRAME x1.
END.