Problems - Correcting Logic and Code Errors

Essay

Problems - Correcting Logic and Code Errors
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
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