The Following Sample of Code Contains Errors

question 37

Essay

The following sample of code contains errors. Rewrite the incorrect statements to correct all errors.
-Private Sub btnDisplay_Click(ByVal sender As Object,ByVal e As System.EventArgs)Handles btnDisplay.Click
' displays type of vehicle for the code entered by user
Const strLENGTH_MSG As String = "The code must contain four characters."
Const strTYPE_MSG As String = "The last character in the code must be C,T,or V."
Dim strCode As String
Dim strLastChar As String
strCode = txtCode.Text.ToLower
' determine whether code contains exactly 4 characters
If strCode.Chars < 4 Then
lblType.Text = String.Empty
MessageBox.Show(strLENGTH_MSG,"Code",
MessageBoxButtons.OK,
MessageBoxIcon.Information)
Else
' determine whether the last character is valid
strLastChar = strCode.Substring(4)
Select Case strCode
Case "C"
lblType.Text = "Car"
Case "T"
lblType.Text = "Truck"
Case "V"
lblType.Text = "Van"
Case Else
lblType.Text = String.Empty
MessageBox.Show(strType_MSG,"Type",
MessageBoxButtons.OK,
MessageBoxIcon.Information)
End If
End If
End Sub

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Definitions:

Neutral Stimulus

A stimulus that initially produces no specific response other than focusing attention, until it is paired with an unconditioned stimulus.

Conditioned Stimulus

A previously neutral stimulus that, after becoming associated with the unconditioned stimulus, eventually comes to trigger a conditioned response.

Unconditioned Stimulus

In classical conditioning, a stimulus that naturally and automatically triggers a response without any prior learning.

Partial Conditioner

An agent or factor that has a conditional effect, contributing to an outcome only in certain contexts or situations.