Public Class Form1 Private Sub clearBtnClickByVal sender As
Public Class Form1
Private Sub clearBtn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles clearBtn.Click
\'cleat the input and result
inputTxt.Text = \"\"
resultLabel.Text = \"\"
End Sub
\'close the form
Private Sub exitBtn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles exitBtn.Click
\'close the application
Me.Close()
End Sub
\'Double click on the calculat button and write the following code
Private Sub cntBtn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cntBtn.Click
\'Set the following variables to zero
Dim count As Integer = 0
Dim value As Integer = 0
Dim index As Integer = 0
If CInt(inputTxt.Text) > 1000 Then
textBox.Text = \"Please Enter a 3 Digit Number\"
\'set focus to inputtext
inputTxt.Focus()
Else
\'get input text and convert to integer
value = Convert.ToInt32(inputTxt.Text)
For index = 1 To value
If index Mod 2 = 0 Then
count = count + 1
End If
Next
resultLabel.Text = \"This number contains \" + CStr(count) + \" even digits\"
End If
End Sub
End Class
Solution
Public Class Form1
Private Sub clearBtn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles clearBtn.Click
\'cleat the input and result
inputTxt.Text = \"\"
resultLabel.Text = \"\"
End Sub
\'close the form
Private Sub exitBtn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles exitBtn.Click
\'close the application
Me.Close()
End Sub
\'Double click on the calculat button and write the following code
Private Sub cntBtn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cntBtn.Click
\'Set the following variables to zero
Dim count As Integer = 0
Dim value As Integer = 0
Dim index As Integer = 0
If CInt(inputTxt.Text) > 1000 Then
textBox.Text = \"Please Enter a 3 Digit Number\"
\'set focus to inputtext
inputTxt.Focus()
Else
\'get input text and convert to integer
value = Convert.ToInt32(inputTxt.Text)
For index = 1 To value
If index Mod 2 = 0 Then
count = count + 1
End If
Next
resultLabel.Text = \"This number contains \" + CStr(count) + \" even digits\"
End If
End Sub
End Class

