Visual Basic

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1 1 P a g e Visual Basic 6.0 Punjab University papers Visual Basic Question No 1(a). What is an algorithm and pseudo code? 5.0 1(b). What is OOP? Explain its importance 5.0 Question No 2(a) what are user define data types? which data type are support to VB 5.0 2(b) what are control element? Explain the sub procedure. 5.0 Question NO.3(a) what are optional arguments? Write code example using optional arguments 3(b) what are event procedure.with example Question No 4.(a) what are arrays? Explain two array related functions (b) what are difference between logical and syntax error with example 5.0 Question No 5.(a) what are sequential Access data file? (b) what is a data base? explain the uses of data control 5.0 Visual Basic Question No 1(a). Differentiate between structured programming and OOP (b). what is variable? in visual basic what do you mean by scope of variable. Question No 2(a) what do you means by a user defined sub procedure. Explain by giving example 5.0 2(b) differentiate between input box function and msgbox function. 5.0 Question NO.3(a) what are the different looping construct available in visual basic with example 5.0 3(b) what are the different selection structure available in visual basic with Example 5.0 Question No 4.(a) what do you means control array. In visual basic how control arrays help 5.0 you in coding (b) write a descriptive note on sequential access of file. 5.0 Question No 5.(a) An array of size N contains N positive integer 0-9construct an algorithm to determine if word is palindrome (mom, 4994) (b) write the program to read a positive integer N whether or not N is prime Number. 5.0 Dim i As Integer Dim x As Integer n = InputBox("enter the value ") For i = 2 To n / 2 If n Mod i = 0 Then x = 1 Exit For

2 2 P a g e Visual Basic 6.0 Punjab University papers If x = 0 Then Print "prime" Else Print "composite" Visual Basic Question no 1(a). What is program solving? explain its advantages (b) What is variable? explain different data types in VB. 5.0 Question No 2. (a) What are arithmetic operator in visual basic? explain with example.`5.0 2(b) How can you use a scrollbar in visual basic with example. 5.0 Question No 3(a) What is user define data types explain with example (b) In visual basic how select case help in coding. 5.0 Question no 4 (a) Discuss the different properties of form in detail (b) Difference between modules and procedure 5.0 Visual Basic Question No.1 what is event driven programming? differentiate between event driven programming and visual programing Question no 2. Write a VB program that takes n numbers as input. it outputs the frequency of positive and negative numbers. A sample input and out put as follows: Input N = 12 The 12 numbers are as under :- 40, 0, -1, 59, -37, 283, 61, 387, -91, -103, 341, 523 Output :- Frequency of positive numbers :- 8 Frequency of negative numbers :- 4 Dim n(11) As Integer

3 3 P a g e Visual Basic 6.0 Punjab University papers Dim sumpos As Integer Dim sumneg As Integer For i = 0 To 11 n(i) = InputBox("enter the value of array:") For i = 0 To 11 Print n(i) If n(i) < 0 Then sumneg = sumneg + 1 Else sumpos = sumpos + 1 Print "the frequency of even " & sumpos Print " the frequency of odd " & sumneg Question NO 3. Write a VB program that reads n values in a list and print the product of the value and position at which it resides in the list. product = L[1]*1, product = L[2] * 2 and so on Note the list does not change : Example:- position : Value Output : Dim n(1 To 5) As Integer For i = 1 To 5 n(i) = InputBox("enter the values in to array") Print " the output is as follwoing:" For i = 1 To 5 Print n(i) * i Visual Basic Question no 1. What is meant by structure programming? Describes event procedures, function procedures and modules. also given one coding for each type of the procedure. 12.5

4 4 P a g e Visual Basic 6.0 Punjab University papers Question no. 2 write a VB program that takes N numbers as input. it print the maximum number and its frequency (number of occurrence ) Sample no 1 N= 10 The 10 inputs are 7,20, -1, 65, 36, 90, 78, 90,90,-2 Maximum is 90 Frequency is 3 Dim fr As Integer Dim i As Integer Dim n As Integer Dim max As Integer fr = 0 max = 0 n = InputBox("enter the values") For i = 1 To n x = InputBox("enter the value ") If x > max Then max = x fr = 1 ElseIf x = max Then fr = fr + 1 Print "max is =" & max Print "frequency of max value" & fr Question no 3. Write a program that read 10 numbers from user and store them in an array. Print the numbers in ascending order. A sample program is given below ,8,90,34,2,9,12,1,10,32 Output :- 1,2,7,8,9,10,12,32,34,90 Dim arr(4) As Integer, temp As Integer Dim s As Integer Dim e As Integer s = InputBox("enter the value of s") e = InputBox("enter the value of e")

5 5 P a g e Visual Basic 6.0 Punjab University papers arr(i) = InputBox("enter the time in min") Print arr(i) For j = s To e - 1 If arr(j) > arr(j + 1) Then temp = arr(j) arr(j) = arr(j + 1) arr(j + 1) = temp Next j Print "sorted array " Print arr(i) Visual Basic Question no.1 Explain the following programming concept with example : a. data types in visual basic b. variables and their scope in a program c. branching & looping instructions d. function procedure e. relational operator. Question no.2 write a VB program that should takes a number n as input. your program print first 10 multiples of n by using loop Dim n As Integer n = InputBox("enter the value of n") For i = 1 To 10 Print "multiple" & n * i

6 6 P a g e Visual Basic 6.0 Punjab University papers Question no. 3 write a VB program that should takes 10 numbers as input and store them in an array. It should print the number of even numbers among those numbers. you need to use if else and loop in your program Dim n(9) As Integer Dim sumeven As Integer sumeven = 0 For i = 0 To 9 n(i) = InputBox("enter the value of n") For i = 0 To 9 If n(i) Mod 2 = 0 Then Print n(i) sumeven = sumeven + 1 MsgBox "total even number frequency=" & sumeven Visual Basic Question no 1. Explain the following terms and techniques : a. low level language b. OOP c. Structured programming d. sub procedure e. variable in VB Question No 2. Write a VB program that should takes 10 numbers from user as input data. your program should separate count the even and odd numbers presents in input. print both of the counts on the screen Dim n(9) As Integer For i = 0 To 9 n(i) = InputBox("enter the value of array:") For i = 0 To 9 Print n(i) If n(i) Mod 2 = 0 Then

7 7 P a g e Visual Basic 6.0 Punjab University papers evensum = evensum + 1 Else oddsum = oddsum + 1 Print "the frequency of even " & evensum Print " the frequency of odd " & oddsum Question No 3. Write a program in VB that should takes 3 numbers from user as input. your program find and print the square and cube of these three numbers on the screen Dim a As Integer Dim b As Integer Dim c As Integer a = InputBox("enter the value of a ") b = InputBox("enter the value of b ") c = InputBox("enter the value of c ") Print "a =" & vbtab & a ^ 2 & vbtab & a ^ 3; vbnewline & "b =" & vbtab & b ^ 2 & vbtab & b ^ 3; vbnewline & "c =" & vbtab & c ^ 2 & vbtab & c ^ 3; vbnewline Visual Basic Question NO.1. briefly explain the different between the following terms :- ( ) 1. variable and constant 2. low level and high level programming language 3. conditional and repletion statement in VB (B) write a VB program that inputs three distinct number and find and display middle one.

8 8 P a g e Visual Basic 6.0 Punjab University papers Dim a As Integer Dim b As Integer Dim c As Integer a = InputBox("enter the value") b = InputBox("enter the value") c = InputBox("enter the value") If (a > b And a < c) Or (a < b And a > c) Then Print "a is middile value" ElseIf (b > a And b < c) Or (b < a And b > c) Then Print " b is middle value" ElseIf (c > a And a < b) Or (c > b And a < c) Then Print "c is middle value" Question No 2(a) The Area of a rectangle is the rectangle s multiplied by its width. write program that asks for length and width of two rectangles. The program should tell the user which rectangle has the greater area or if the area are the same. ( ) Dim l1 As Integer Dim l2 As Integer Dim w1 As Integer Dim w2 As Integer Dim a1 As Integer Dim a2 As Integer l1 = InputBox("enter the value of lenght 1st triangle") w1 = InputBox("enter the value of width 1st triangle") l2 = InputBox("enter the value of lenght 2nd triangle") w2 = InputBox("enter the value of width 2nd triangle ") a1 = l1 * w1 a2 = l2 * w2 If a1 > a2 Then MsgBox ("area of first triangle is greater from second triangle ") ElseIf a1 = a2 Then MsgBox ("area of first triangle is equal to second triangle") ElseIf a1 < a2 Then MsgBox ("area of second triangle is greater from first triangle ")

9 9 P a g e Visual Basic 6.0 Punjab University papers (b). Write a VB program that should take a positive number n as input. your should display the sum of all numbers between 1 to n numbers. Solution : - Dim n As Integer Dim sum As Integer n = InputBox("enter the value") For i = 1 To n num = InputBox("enter the value") Print num sum = sum + num Print "sum of all the num" & sum Question NO 3.(a) write a VB program that should take 10 number from user. your program should find and display the maximum number. ( ) Dim num As Integer Dim max As Integer Dim count As Integer count = 0 max = num num = InputBox("enter the value :") Do While num > 0 count = count + 1 If num > max Then max = num num = InputBox("enter the value for exit ") Loop Print "max num is = " & max Dim n(10) As Integer Dim max As Integer OTHER SOLUTION

10 10 P a g e Visual Basic 6.0 Punjab University papers For i = 1 To 10 n(i) = InputBox("enter the 10 value") max = n(1) For i = 1 To 10 Print n(i) If max < n(i) Then max = n(i) Print "max =" & max (b) write a program that should takes two numbers (that is, first and last ) from the user and display all the numbers and their square in the form of an order pair between first and last numbers For example if user enter 2 to 5 then it should display pairs (2,4) (3,9) (4,16) (5,25) For example if user enter -3 to1 then it should display pairs (-3,9) (-2,4) (-1,1) (0,0) )(1,1) Dim n As Integer Dim S As Integer Dim E As Integer S = InputBox("enter the value") E = InputBox("enter the value") n = S For n = S To E Print "(" & n & "," & n ^ 2 & ")" Next n

11 11 P a g e Visual Basic 6.0 Punjab University papers Visual Basic Question NO 1(a) briefly Explain the difference between the following terms ( ) 1. structured programming 2. object oriented programming 3. visual programming Question No 1(b) running on a particular treadmill burn 3.9 calories per minutes. write a program that uses a loop to display the number of calories burned after 10, 15,20, 25 and 30 minutes Dim calories As Single Dim total_cal As Double total_cal = 0 calories = InputBox("enter the calories") For i = 10 To 30 Step 5 Print calories * i total_cal = total_cal + calories * i Print "total calories" & total_cal Const calories As Single = 3.9 Dim total_cal As Double total_cal = 0 For i = 10 To 30 Step 5 Print calories * i total_cal = total_cal + calories * i Print "total calories" & total_cal With constant Question NO 2(a) A country club, which currently charge RS per year for membership has, announced it will increase its membership fee by 4% each year for next 6 years. write a program uses loop to display the projected for next six years. ( ) Dim membership As Integer

12 12 P a g e Visual Basic 6.0 Punjab University papers Dim sum As Integer Dim year As Integer sum = 0 membership = 2500 For year = 2011 To 2016 Print year & vbtab & membership * 0.04 sum = sum + membership * 0.04 projected_cost = membership + sum Next year Print "projected membership for next 6 years " & projected_ cost Question No 2(b) write a VB program that should takes 10 positive numbers as input. your program should display the sum of all the numbers from 1 to n numbers. Dim n As Integer Dim sum As Integer sum = 0 For i = 1 To 10 n = InputBox("enter the value") Print n sum = sum + n Print "sum of numbers" & sum Question NO 3(a) write a VB program that should takes 10 minutes from user and save in an array. your program should sort and display these numbers in ascending order. ( ) Dim arr(4) As Integer, temp As Integer Dim s As Integer Dim e As Integer s = InputBox("enter the value of s") e = InputBox("enter the value of e") arr(i) = InputBox("enter the time in min") Print arr(i)

13 13 P a g e Visual Basic 6.0 Punjab University papers For j = s To e - 1 If arr(j) > arr(j + 1) Then temp = arr(j) arr(j) = arr(j + 1) arr(j + 1) = temp Next j Print "sorted array " Print arr(i) Question N0.3(b) write a program that asks the user to enter the amount that he or she budgeted for a month. A loop should then user to enter each of his or her expenses for the month and keep a running total. when the loop finishes, the program should displays the amount that user is over or under the budgets. Dim budget As Integer Dim val As Integer Dim exp As Integer exp = 0 budget = InputBox("enter the budget") Do val = InputBox("enter the expenses or enter the 0 to end ") exp = exp + val Loop While (val <> -1) If budget > exp Then Print " expenses under the budget" Else Print " expenses over the budget"

CPSC 203 Extra review and solutions

CPSC 203 Extra review and solutions Multiple choice questions: For Questions 1 6 determine the output of the MsgBox 1) x = 12 If (x > 0) Then s = s & "a" s = s & "b" a. a b. b c. s d. ab e. None of the