In programming, developers often require a repeated execution of a sequence of operations. A loop is a basic programming construct that allows repeated execution of a fragment of source code.
In a While End Loop, the code is repeated a fixed number of times, or it repeats until a given condition is true.
Here is how a while end loop looks like:
While condition
'statements
End While
Let's consider a very simple example of using the while loop.
Public Sub Example1()
Dim index As Integer = 0
While index <= 10
Console.Write(index.ToString & " ")
index += 1
End While
Console.WriteLine("")
End Sub
The following example shows the use of the Continue While and Exit While statements.
Public Sub Example2()
Dim index As Integer = 0
While index < 100000
index += 1
If index >= 5 And index <= 8 Then
Continue While
End If
Console.Write(index.ToString & " ")
If index = 10 Then
Exit While
End If
End While
End Sub