DOT NET Interview Questions - DotNetSpider

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles MyBase.Load
Dim pthread1 As New Thread(AddressOf Thread1)
Dim pthread2 As New Thread(AddressOf Thread2)
pthread1.Start()
pthread2.Start()
End Sub
Public Sub Thread1()
Dim pintcount As Integer
Dim pstr As String
pstr = “This is first thread”
Do Until pintcount > 5
lstThreadDisplay.Items.Add(pstr)
pintcount = pintcount + 1
Loop
End Sub
Public Sub Thread2()
Dim pintcount As Integer
Dim pstr As String
pstr = “This is second thread”
Do Until pintcount > 5
lstThreadDisplay.Items.Add(pstr)
pintcount = pintcount + 1
Loop
End Sub
Above is a sample code which shows simple sample code for threading..Above sample
code can be found in “Threading” folder in CD provided.Above sample has two methods
“Thread1()” and “Thread2()” which are started in multi-threaded mode in Form load
event of the sample.
Note :- If you run the sample you will see that sometimes the first thread runs first and
then the second thread.This happens because of thread priorities .The first thread is run
with highest priority.
(A)How can we change priority and what the levels of priority are
provided by .NET ?
Thread Priority can be changed by using Threadname.Priority = ThreadPriority.Highest.In
the sample provided look out for code where the second thread is ran with a high priority.
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