QBasic Programming

CLS
INPUT “ENTER ANY NUMBER”; N
IF N > 0 THEN
PRINT N; "IS POSITIVE NUMBER”
ELSEIF N < 0 THEN
PRINT N; "IS NEGATIVE NUMBER”
ELSE
PRINT N; "IS ZERO”
END IF
END
USING SUB PROCEDURE
DECLARE SUB CHECK (N)
CLS
INPUT “ENTER ANY NUMBER”; N
CALL CHECK (N)
END
SUB CHECK (N)
IF N > 0 THEN
PRINT N; "IS POSITIVE NUMBER”
ELSEIF N < 0 THEN
PRINT N; "IS NEGATIVE NUMBER”
ELSE
PRINT N; "IS ZERO”
END IF
END SUB
USING FUNCTION PROCEDURE
DECLARE FUNCTION CHECK$ (N)
CLS
INPUT “ENTER ANY NUMBER”; N
PRINT N; “IS “; CHECK$(N)
END
FUNCTION CHECK$ (N)
IF N > 0 THEN
CHECK$ = “POSITIVE NUMBER”
ELSEIF N < 0 THEN
CHECK$ = “NEGATIVE NUMBER”
ELSE
CHECK$ = “ZERO”
END IF : END FUNCTION