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1
ON
VISUAL BASIC
?SUBMITTED BY:UDAY KUMAR
ROLL NO:REGD. NO: B.SC (CA), PART – I SESSION: 2012 – 2015
2
ACKNOWLEDGMENT
This assignment has been developed on the basis of lectures delivered by Mrs. Jayanti Mam in our class. I would like to thank them whole heartedly for their noble guidance and superb teaching. She also encouraged me a lot while I was dealing with the assignment.
Last but not the least, My special thanks to all the Staff Members of the department, to My Friends and to My Family Members for their contributions in everything that I do and also for their uncanny ability to come up with suggestions, which helped me a lot in completing this assignment successfully.
Thanking You,
Uday Kumar
3
CERTIFICATEThis is to certify that student of B.Sc. in Comp.App(H), of Y S
Mahavidyalaya (Ranchi University) Ranchihaving Roll
number:
Regd. No.
Session 2011 – 2014 has successfully completed his assignment
on Paper – IV (B) (VISUAL BASIC).
I hereby declare that all the information made by me is true in
the best of my knowledge and I submit this assignment to the
department of “Computer Application” in the “Y S
Mahavidyalaya, Ranchi”.
Signature:-
External: Teacher-incharge
4
Department of BCA
INDEX
Sl. No.
Topic Page No.
1 Introduction of Visual basic 07-122 Timer Control 13
3 Scroll bar 14-15
4 Check box control 16-17
5 Radio Button or Option button 18-19
6 Combo Box 19-20
7 List box 21-22
8 Creation of picture box and Image box 22-24
9 Program to SUM TWO NUMBERS 2410 Program in V.B. to find the greatest no.
among two numbers.25-26
11 program in V.B. using text boxes and command buttons to perform simple arithmetic’s addition, subtraction, multiplication, division
26-29
5
12 program in V.B. to print
* * * * * * * * * ** * * * *
29-31
13 program in V.B. to print
1 2 3 4 5 6
31-32
14 program to print the number is prime or not
32-33
15 program for reverse of number in V.B. 3416 Program to generate following series in
V.B.1 , 2 , 3 , 4 , ………………………….20
35
17 Program to generate following series in V.B.2 , 4 , 6 , 8 , ………………………….n
35-36
18 Program to generate following series in V.B.1 , 8 , 27 , ………………………….125
36
19 Program to check that the given number is even or odd
37
20 Program to find the given number is palindrome ornot
37-39
21 Program to find out the FACTORIAL of any number
39-40
22 Program to create multiplication table 40
6
23 Program to find given string is PALINDROME or not
41
24 Program to SUM of ‘n’ NATURAL NUMBERS
42
25 W.A.P. to display time, date, your name, exit button text box
43
26 Program to generate the following pattern:1223334444
44
27 Program for connection with ms 45 - 48
VISUAL BASIC
7
(An Introduction)Visual Basic is one of the most popular programming languages. Microsoft has positioned it to fulfill the multiple purposes in the development. Visual Basic is designed to deploy application across the enterprise and to scale to nearly any assize needed. The ability to develop object models, database integration, server components and internet/intranet application provide and extensive range of capabilities and tools for the developer.
Visual Basic falls into a category of programming referred to as event-driven programming. Event-driven programs respond to events from the computer, such as the mouse button being pressed. The designer uses ready-made objects such as Command Buttons and Textboxes, to build user interfaces that make up the application. This approach to programming drastically reduces the amount of code required to develop a Window application.
What is Visual Basic? Visual Basic is a tool that allows you to develop windows
(Graphic User Interface - GUI) applicationsz The applications have familiar appearance to the user.
Visual Basic is event-driven, meaning code remains idle until called upon to some event (button pressing, menu selection …). Visual Basic is governed by an event processor. Nothing happens until an event is detected. Once an event is detected, the code corresponding to that event (event procedure) is executed. Program control is then returned to the event processor.
Event Processor
Event?
Basic Code Basic Code Basic Code
8
Event
procedures
The Visual Basic Program contains the following things:
The IDE
Like any other Windows application, VB consists of multiple windows, which appear at startup. The windows that are displayed when we start VB collectively that are known as the Visual Basic Integrated Development Environment (IDE).
When we first start VB all of the windows are looked together in what is called the MDI format. Here is a sample IDE screen which shows a VB project with one form on which is there are two Command Buttons.
Toolbox Code window Properties Windows
Fig: The Interactive IDE
Toolbox
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The toolbox shows the basic controls that are available when we start a new project. The controls are added to the form to visually describe the appearance of the application. The toolbox is simply a library of controls, which we can place on our application. Each control has a set of properties, and a set of event procedures associated with it.
Fig: Toolbox
Project ExplorerThis is the window, which allows us to coordinate the parts of our program into folders for easy manipulation because all parts of the project appear in the Project Explorer arranged in a tree view. We can also add and remove items by right-clicking them with the mouse in the Project-Explorer.
10
Fig: Project Explorer
Properties WindowIt displays the properties of the currently selected form or project. Some of properties can be entered at design time within the IDE’s, while others must be entered with code while the program is running.
Fig: Properties Window
11
Form lay-out windows
Enables us to arrange the location where our forms appear on the screen. To give a form a new initial location, just we drag that form in the form layout window to hat new location.
Fig: Form Layout Window
Form Designers
Form designers are really just windows in which a particular form appears and are the main stage of our application. By default, the Standard EXE option starts with a form called Form 1. The Nameproperty should be named with the three letter’s prefix i.e. frm.This is the window provides workspace to draw different controls.
12
Fig: Form 1
Code Window
We just place the code we want to attach to an object in the code window (to open an object’s code in the code window, just double-click that object). There is two drop-down list boxes at the top of the code window: the left side lets we select the object to ad code to, and the right list lets we select the procedure to add (all the methods the object supports appear in this list).
Fig: Code Window
13
Timer Control:
Create a timer write in the timer event.
TimerCoding and Output
Fig: output for timer to show image
14
Scroll bar
Text box2 Vertical scroll bar
Text box 1 Horizontal scroll bar
A scroll bar are use to get the input or display output when we don’t care about the exact value of an object but we do care whether the change small or large.
1. Create two vertical and one horizontal scroll bar.
2. Also create three text box and three command bottom.
“RGB color combination in v.s”
i.e. Co – 255
3. Change the “name” properties of all the three scrolls as v1,h1 v2.
4. Set maximum and minimum value. Min = 0
Max=255
5. Write the following cording in the change event.
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V1 i.e. vertical scroll bar.
Text1.text back color RGB (v1.value, h1 .value, v2.value)
6. Same coding will be written in v2 and h1 scroll bar.
7. Write in the change event of v1.
Write
Text2.text = v1.value & “,” & h1.value & “,” & v2.value “,”.
NOTE:
“Range of color is 165 out of 255”
Private sub h1 change ()
Text2.text back color = RGB (v1.value, h1.value, v2.value)
Text box 1
Code window vertical scroll bar
Horizontal scroll bar Text box 2
Scroll bar
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Check box control
Fig: check box control
1. It is used in basically to stored logical value.
2. It is defer from option button in that regardless who many check boxesreplace on form they can also be turned on and off independently.
3. If we select a check box the value properties is true .If step true until the user deselect the box unclick of the option bottom.
Create a check box and a text box.
Write in click event of check box.
If check 1.value =1then
Text1.text= true and check1. Value
End if
Text box
Check box
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Coding
output
18
Radio Button or Option button
Fig: option button
In option button when the user choose 1 button. All the other Button in the group of turned off for this reason any applications that uses more then 1 group of option buttons on a form must use a frame to separate the groups per pose of option button is choose from a finite list of possibilities
Coding
19
Output
Combo Box
In combo box we can add items at or in time by inpliciting value in it.But in list box we can allow any things at run time because we cannot give the spacitoenter (at design time).
20
Coding
Output
List box
21
Use list box we have fixed list of choice vb automatically acts vertical scroll bar whenever the list box is to small for all the items it Contac coding is same as the combo box.
Coding
Output
22
Creation of picture box and Image box
We can use picture box for many different content and draw the picture box. The icon for picture boxes are look like a deserve seen and reminds you that these holds graphical images.
the use of picture box has many advantage like:-
23
Picture box are memory hungry and you can more the 1 picture in same form.
Picture box holds three types of graphic:-
1. bitmap
2. icon
3. windows mega file
1. Bitmap:-
Bitmaps is a graphical image of screen. Image controls are often used for bitmap. The extension of bitfil is .BMP
2. Icon:-
Icons are supplied by VB. At list p type lists the 400or so icon supplied.
Picture box have so proportional is “true” the picture box automatically resize itself.
We can not change the original size of picture.
For drawing the picture and image follow the following step:-
1. Project menu:-
Component (List of external vender):- Microsoft window common control S.O :- Click it:-OK
Then draw a picture and icon box from coming icon.
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The original size of image least is changed due to stretched property set Starch property “true”.
Output
PROGRAMS DEVELOPEDUSING VISUAL BASIC (IDE)
Program to SUM TWO NUMBERS:
Private Sub Form_Load ()Dim a As Integer, b as Integer, s as Integera = Input Box (“Enter the value for first number :”)b = Input Box (“Enter the value for second number :”)s = a + bMsgBox “The sum is = “&sEnd Sub
OUTPUTEnter the value for first number: 5Enter the value for second number: 8The sum is = 13
25
\* Program in V.B. to find the greatest no. among two numbers.
Private Sub Command1_Click ()
Dim a, b as integer
a = Val (text1.text)
b = Val (text2.text)
If a>b then
text3.text = a
Else
text3.text = b
End if
Level
button
Text button
Command button
26
End sub
OUTPUT:-
If
First number = 22
Second number = 33
Greater number is:-
Result= 33
\* program in V.B. using text boxes and command buttons to
perform simple arithmetic’s addition, subtraction, multiplication,
division *\
Private Sub Command1_Click ()
Dim a, b as Integer
a = Val (Text1.Text)
b = Val (Text2.Text)
Text3.Text = a + b
End Sub
Private Sub Command2_Click ()
Dim a, b as Integer
a = Val (Text1.Text)
27
b = Val (Text2.Text)
Text3.Text = a - b
End Sub
Private Sub Command3_Click ()
Dim a, b as Integer
a = Val (Text1.Text)
b = Val (Text2.Text)
Text3.Text = a * b
End Sub
Private Sub Command4_Click ()
Dim a, b as Integer
a = Val (Text1.Text)
b = Val (Text2.Text)
Text3.Text = a / b
End Sub
OUT PUT:-
Enter first number = 12
Enter second number = 6
Result – ADD = 18
SUB = 6
MULT = 72
28
DIV = 2
29
\* program in V.B. to print
*
* *
* * *
* * * *
* * * * * *\
30
Private Sub Command1_Click ()
Dim i, j, k as Integer
For i = 1 To 5
For k = 5 to i Step -1
Print " ";
Next k
Print "*";
Print " ";
Next j
Next i
End Sub
31
OUTPUT:-
*
* *
* * *
* * * *
* * * * *
\* program in V.B. to print
1
2 3
4 5 6 *\
Private Sub Command1_Click ()
Dim a, b as Integer
C = 1
For a = 1 To 5
For b = 1 To a
Print c;
32
C = c+1
Next b
Next a
End Sub
OUT PUT:-
1
2 3
4 5 6
\* program to print the number is prime or not *\
Private Sub Command1_Click ()
Dim n, a, f as Integer
n = Val (text1.Text)
a = 2
33
f = 0
Do While (a < n)
If (n Mod a = 0) Then
text2.Text = Number Is Not prime
f = 1
End If
Exit Do
Loop
If (f = 0) Then
text2.Text = "prime"
End If
End Sub
OUTPUT:-
If
Enter number = 31
Number is prime
Else
Enter number = 66
Number is not prime
\* program for reverse of number in V.B. *\
34
Private Sub Command1_Click ()
Dim rev, rev, and nas Integer
n = Val (Text1.Text)
Rev = 0
While (n > 0)
Rev n Mod 10
Rev = rev * 10 + rev
n = n \ 10
Text2.Text = rev
End Sub
OUTPUT:-
Enter the number = 12Result = 21
\* Program to generate following series in V.B.1 , 2 , 3 , 4 , ………………………….20 *\
35
Private Sub Command1_Click ()
Dim i, sum As Integer
Sum = 0
i = 1
Do While (i <= 20)
Sum = sum + i
i = i + 1
Loop
text1.Text = sum
End Sub
\* Program to generate following series in V.B.2 , 4 , 6 , 8 , ………………………….n *\
Private Sub Command1_Click ()
Dim n, i, sum As Integer
n = Input Box ("enter limit")
Sum = 0
i = 2
Do While (n >= i)
i = i + 2
36
Loop
text1.Text = sum
End Sub
\* Program to generate following series in V.B.1,8,27 ………………………..125 *\
Private Sub Command1_Click ()
Dim i, sum As Integer
i = 1
Sum = 0
Do While (i <= 5)
Sum = sum + (i * i * i)
i = i + 1
Loop
text1.Text = sum
End Sub
\* Program to check that the given number is even or odd *\
Private Sub Command1_Click ()
37
Dim n, flag As Integer
Flag = 0
n = Val (text1.Text)
Do While (n > 0)
If (n Mod 2 = 0) Then
Flag = 1
Exit Do
End If
Loop
If (flag = 1) Then
text2.Text = "number is even"
Else
text2.Text = "odd number"
End Sub
\* Program to find the given number is palindrome or not *\
38
Private Sub Form_Load()
Dim palin, r, s, a As an Integer
s = 0
a = Input Box (“Enter any number to check whether it is palindrome or not :”)
Palin = a
While a<>0
r = a Mod 10
s = s * 10 + r
a = a / 10
Wend
If s = palin Then
MsgBox “It is a palindrome”,,” Checking Palindrome”
39
Else
MsgBox “Not a Palindrome”, “Checking Palindrome”
End If
End Sub
OUTPUT:Enter any number to check whether it is palindrome or not: 12321
It is Palindrome
Enter any number to check whether it is palindrome or not: 12345
Not a Palindrome
\* Program to find out the FACTORIAL of any number *\
40
Private Sub Form_Load ()
Dim fact As Integer, i As Integer, n As Integer
Fact = 1
i = 1
n = Input Box (“Enter any number :”)
For i=1 to n
Fact = fact * i
Next i
MsgBox “The FACTORIAL is =” &fact
End Sub
OUTPUT:
Enter any number: 5
The FACTORIAL is = 120
\* Program to create multiplication table *\
Private Sub Command1_Click ()
Dim i, n As Integer
n = Input Box ("enter a number")
For i = 1 To 10
r = n * i
41
Debug. Print n; "*"; i; "="; r
Next
End Sub
\* Program to find given string is PALINDROME or not *\
Private Sub Form_ Load ()
Dim s1 As String, s2 As String, n As String
Dim l as Integer, i as Integer
Show
n = Input Box (“Enter any String: “)
l = Len (n)
For i = 1 to l
If (StrComp (Mid (n, i, l), Mid (n, 1, l)) <>0) Then
Print (“Not PALINDROME”)
Exit Sub
End If
l = l – 1
Next i
Print (“PALINDROME”)
End Sub
OUTPUT:Enter any String: Madam
PALINDROME
42
Enter any String: SHOBHAN
Not PALINDROME
\* Program to SUM of ‘n’ NATURAL NUMBERS *\
Private Sub Form_ Load ()
Dim n As Integer, sum As Integer, i As Integer
Sum = 0
n = Input Box (“Enter the numbers up-to which the sum of natural numbers is to be
generated :”)
For i = 1 to n
Sum = sum + i
Next i
MsgBox “The sum of natural numbers = “&sum
End Sub
OUTPUT:
Enter the numbers up-to which the sum of natural numbers is to be generated: 5
The sum of natural numbers = 14
43
W.A.P. to display time, date, your name, exit button text box?
Fig: Form layout
Code is as follows = >
Private Sub Command1_Click ()Text1=”Chandan_Splendid”End sub
Private Sub Command2_Click ()Text1= TimeEnd sub
Private Sub Command3_Click ()Text1= DateEnd sub
Private Sub Command4_Click ()EndEnd sub
44
Program to generate the following pattern:
1223334444------------------
Private Sub Form_ Load ()Dim i, j, n as Integersn = Input Box (“Enter any Number: “)For i = 1 to nFor j = 1 to iDebug. Print j;Next jDebug. PrintNext iEnd Sub
Output
1223334444--------------------------
45
\*Connection with ms-access in v.b*\
PROCESS
Add in Visual data manager file New M.A.
Select bob property Data bass window Dialog Version 7.0 mdb
Right click
New table Name of table Add file Dialog box open or close
OK
46
Build table Data base window Table double click or table right click
Add button click Open
Student
Name
Roll
Address
47
48
Tool box Data control Properties Data base name
Data source select Data 1 Record and Source table name
Output:-
