QBASIC program using FUNCTION and SUB Procedure
1. New specification grid 2077
Write a program in QBASIC that asks length, breadth and height of room and calculates its area and volume. Create a user-defined function to calculate area and sub-program to calculate volume. Hint: [A =LxB], [V=LxBxH]
DECLARE FUNCTION area (l, b)
DECLARE SUB vol (l, b, h)
CLS
INPUT "Enter length, breadth and
height"; l, b, h
PRINT "Area="; area(l, b)
CALL vol(l, b, h)
END
FUNCTION area (l, b)
area = l * b
END FUNCTION
SUB vol (l, b, h)
v = l * b * h
PRINT "volume"; v
END SUB
2. SEE 2078
Write
a program in QBASIC that asks length, breadth of a room and calculates its area
and perimeter. Create a user define function to calculate area and sub program
to calculate perimeter. [Hint: [Area=L×B],
P=2(L+B)]]
Ans:
DECLARE FUNCTION
area(l,b)
DECLARE SUB
perimeter(l,b)
CLS
INPUT “Enter length
and breadth”;l,b
PRINT area(l,b)
CALL perimeter(l,b)
END
FUNCTION area(l,b)
Area=l*b
END FUNCTION
SUB perimeter(l,b)
P=2*(l+b)
PRINT p
END SUB
3. SEE Grade Promotion Exam 2078(2022)
Write
a program to calculate the area of a circle using the function procedure and
use the SUB procedure to calculate its circumference in QBASIC. [Hints: (A=Ï€r2)
, (C=2Ï€r)]
DECLARE
FUNCTION area(r)
DECLARE
SUB cirm(r)
CLS
INPUT
"Enter radius";r
PRINT
area(r)
CALL
cirm(r)
END
FUNCTION
area(r)
area=3.14*r2
END
FUNCTION
SUB
cirm(r)
c=3.14*2*r
PRINT c
END SUB
4. PABSON SEE Pre Board Examination 2078
Write a
program in QBASIC that allows user to enter radius of a circle. Create a user
define function to find area of circle and sub procedure to find volume of
cylinder. Hint: [A=Ï€r2, v=Ï€r2h]
DECLARE FUNCTION area (r)
DECLARE SUB vol (r, h)
CLS
INPUT "Enter radius and height";
r, h
PRINT area(r)
CALL vol(r, h)
END
FUNCTION area (r)
a = 22 / 7 * r ^ 2
area = a
END FUNCTION
SUB vol (r, h)
v = 22 / 7 * r ^ 2 * h
PRINT v
END SUB
5. Write a program in
QBASIC to input radius of circle and calculate its area using function and
circumference using sub procedure. [Area=pie×r2 and
Circumference=2pie r]
DECLARE FUNCTION area
(r)
DECLARE SUB cir (r)
CLS
INPUT "enter
radius"; r
PRINT
"area"; area(r)
CALL cir(r)
END
FUNCTION area (r)
area = 22 / 7 * r * r
END FUNCTION
SUB cir (r)
c = 2 * 22 / 7 * r
PRINT
"Circumference"; c
END SUB
6. WAP in QBASIC to input radius of circle and
calculate its area using FUNCTION…END FUNCTION and circumference using SUB…END
SUB [Area=Ï€×r2 and
Circumference=2Ï€r]
DECLARE FUNCTION area (r)
DECLARE SUB cir (r)
CLS
INPUT "Enter radius"; r
PRINT area(r)
CALL cir(r)
END
FUNCTION area (r)
area = 22 / 7 * r ^ 2
END FUNCTION
SUB cir (r)
c = 2 * 22 / 7 * r
PRINT c
END SUB
7. Write
a program in QBASIC that allow user to enter the length and breadth of
rectangle. Create a user define function to find the area of rectangle and sub
procedure to find perimeter of rectangle.
DECLARE FUNCTION area (l, b)
DECLARE SUB per (l, b)
CLS
INPUT "enter length and
breadth"; l, b
PRINT area(l, b)
CALL per(l, b)
END
FUNCTION area (l, b)
area = l * b
END FUNCTION
SUB per (l, b)
p = 2 * (l + b)
PRINT p
END SUB
8. WAP
to input any three numbers and calculate sum of three numbers by using FUNCTION
procedure and average of three numbers by using SUB procedure.
DECLARE FUNCTION sum (a, b, c)
DECLARE SUB avg (a, b, c)
CLS
INPUT "Enter any three numbers";
a, b, c
PRINT "sum of two numbers";
sum(a, b, c)
CALL avg(a, b, c)
END
SUB avg (a, b, c)
av = (a + b + c) / 3
PRINT "Average of three
numbers"; av
END SUB
FUNCTION sum (a, b, c)
sum = a + b + c
END FUNCTION
9. WAP
to input any three numbers and display the greatest number by using FUNCTION
procedure and smallest number by using SUB procedure.
DECLARE SUB sm (a, b, c)
DECLARE FUNCTION gr (a, b, c)
CLS
INPUT "Enter any three
numbers="; a, b, c
CALL sm(a, b, c)
PRINT "Greatest no="; gr(a, b,
c)
END
FUNCTION gr (a, b, c)
IF a > b AND a > c THEN
g = a
ELSEIF b > c THEN
g = b
ELSE
g = c
END IF
gr = g
END FUNCTION
SUB sm (a, b, c)
IF a < b AND a < c THEN
S = a
ELSEIF b < c THEN
S = b
ELSE
S = c
END IF
PRINT "Smallest no="; S
END SUB
10.
WAP to input any string and display string in reverse order using
FUNCTION and check palindrome or not using SUB procedure.
DECLARE SUB pal (w$)
DECLARE FUNCTION rev$ (w$)
CLS
INPUT "Enter any string="; w$
CALL pal(w$)
PRINT rev$(w$)
END
SUB pal (w$)
FOR x = LEN(w$) TO 1 STEP -1
m$ = m$ + MID$(w$, x, 1)
NEXT x
IF w$ = m$ THEN
PRINT "Palindrom"
ELSE
PRINT "Not palindrom"
END IF
END SUB
FUNCTION rev$ (w$)
FOR x = LEN(w$) TO 1 STEP -1
m$ = m$ + MID$(w$, x, 1)
NEXT x
rev$ = m$
END FUNCTION
11. WAP to input any number and check whether
input number is odd or even by using SUB and check positive and negative by
using FUNCTION.
DECLARE SUB oe (n)
DECLARE FUNCTION po$ (n)
CLS
INPUT "Enter any number="; n
CALL oe(n)
PRINT po$(n)
END
SUB oe (n)
IF n MOD 2 = 0 THEN
PRINT "Even number"
ELSE
PRINT "Odd number"
END IF
END SUB
FUNCTION po$ (n)
IF n > 0 THEN po$ = "Positive
number"
IF n < 0 THEN po$ = "Negative
number"
IF n = 0 THEN po$ = "Netural
number"
END FUNCTION
12. WAP
to input any string and display vowel letters by using FUNCTION and consonant
letters from using SUB procedure.
DECLARE FUNCTION vowel$ (w$)
DECLARE SUB cons (w$)
CLS
INPUT "Enter any string"; w$
PRINT vowel$(w$)
CALL cons(w$)
END
SUB cons (w$)
FOR x = 1 TO LEN(w$)
m$ = UCASE$(MID$(w$, x, 1))
SELECT CASE m$
CASE "A", "E",
"I", "O", "U"
v = v + 1
CASE ELSE
PRINT m$;
END SELECT
NEXT
END SUB
FUNCTION vowel$ (w$)
FOR x = 1 TO LEN(w$)
m$ = UCASE$(MID$(w$, x, 1))
SELECT CASE m$
CASE "A", "E",
"I", "O", "U"
v$ = v$ + m$
END SELECT
NEXT x
vowel$ = v$
END FUNCTION
13. WAP
to input any string and count total number of vowel letters by using FUNCTION
and count total consonant letters by
using SUB procedure.
DECLARE FUNCTION vowel (w$)
DECLARE SUB cons (w$)
CLS
INPUT "Enter any string"; w$
PRINT "Total vowel letters";
vowel(w$)
CALL cons(w$)
END
SUB cons (w$)
FOR x = 1 TO LEN(w$)
m$ = UCASE$(MID$(w$, x, 1))
SELECT CASE m$
CASE "A", "E",
"I", "O", "U"
v = v + 1
CASE ELSE
c = c + 1
END SELECT
NEXT
PRINT "Total consonent letters";
c
END SUB
FUNCTION vowel (w$)
FOR x = 1 TO LEN(w$)
m$ = UCASE$(MID$(w$, x, 1))
SELECT CASE m$
CASE "A", "E",
"I", "O", "U"
v$ = v$ + m$
END SELECT
NEXT x
vowel = LEN(v$)
END FUNCTION
14. WAP
to calculate the sum of digit by using SUB procedure and display input digit in
reverse order by using FUNCTION procedure.
DECLARE SUB sum (n)
DECLARE FUNCTION rev (n)
CLS
INPUT "Enter any number"; n
CALL sum(n)
PRINT rev(n)
END
FUNCTION rev (n)
s = 0
WHILE n <> 0
r = n MOD 10
s = s * 10 + r
n = n \ 10
WEND
rev = s
END FUNCTION
SUB sum (n)
WHILE n <> 0
r = n MOD 10
s = s + r
n = n \ 10
WEND
PRINT "Sum of digit="; s
END SUB
15) Write a program in QBASIC that will asks the
user to input length, breadth and height. Create a user defined function to
calculate surface area of four walls and write sub program to calculate surface
area of box. [Hint: surface area of for walls=2H(L+B), surface area of
box=lh+bh+lb]
DECLARE FUNCTION wall (l, b, h)
DECLARE SUB box (l, b, h)
CLS
INPUT "Enter length, breadth and
height="; l, b, h
PRINT "Surface area of wall=";
wall(l, b, h)
CALL box(l, b, h)
END
SUB box (l, b, h)
area = l * h + b * h + l * b
PRINT "Surface area of box";
area
END SUB
FUNCTION wall (l, b, h)
wall = 2 * h * (l + b)
END FUNCTION
16)
Write a program to define a function procedure to display area of sphere and
sub procedure to display volume of sphere where user has to input the required
data in the main module. [Hint: Area of sphere: 4*PI*R^2, Volume- V =4/3 * π *
r3]
DECLARE FUNCTION area (r)
DECLARE SUB vol (r)
CLS
INPUT "Enter radius"; r
PRINT "Area of sphere"; area(r)
CALL vol(r)
END
FUNCTION area (r)
area = 4 * 22 / 7 * r ^ 2
END FUNCTION
SUB vol (r)
v = 4 / 3 * 22 / 7 * r ^ 3
PRINT "Volume of sphere"; v
END SUB
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