Vb.net (loop structure)

Presented By:

Name : Abhishek Pachisia
Course : B.Tech-IT(Sem V)
Roll No. : 090102801
Made By: Abhishek Pachisia 1

What is VB.NET?

•It is simply Visual Basic for .NET platform developed
by Microsoft.

•It has more components and control than Visual Basic


Visual Basic loop structures allow to run one or
more lines of code repetitively

Statements in a loop structure can be repeated

Until a condition is True
Until a condition is False
A specified number of times, or
Once for each element in a collection.

Types of Looping:

There are mainly 3 types of loop:

For Loop

While Loop

Do Loop


• The For loop is the most popular loop.

•For loops enable us to execute a series of expressions
multiple numbers of times.

•Syntax:

For index=start to end[Step step]
[statements]
[Exit For]
[statements]
Next[index]


Example:

Module Module1

Sub Main()
Dim d As Integer
For d = 0 To 2
System.Console.WriteLine("In the For Loop")
Next d
End Sub

End Module


•While loop keeps executing until the
condition against which it tests remain true.

•Syntax:

While condition
[statements]
End While


Example:

Module Module1

Sub Main()
Dim d, e As Integer
d=0
e=6
While e > 4
e -= 1
d += 1
End While
System.Console.WriteLine("The Loop ran " & e &
"times")
End Sub

End Module By: Abhishek Pachisia
Made 8

•The Do loop keeps executing it's statements while or until the
condition is true.
•Two keywords, while and until can be used with the do loop.
•The Do loop also supports an Exit Do statement which makes
the loop to exit at any moment.

•Syntax:

Do[{while | Until} condition]
[statements]
[Exit Do]
[statements]
Loop


Example:

Module Module1

Sub Main()
Dim str As String
Do Until str = "Cool"
System.Console.WriteLine("What to do?")
str = System.Console.ReadLine()
Loop
End Sub

End Module


Vb.net (loop structure)

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