Question

For each of the following Visual Basic code snippets, identify the syntax error.  

If intX > 100   lblResult.Text = "Invalid Data" End If  

Dim str As String = "Hello" Dim intLength As Integer intLength = Length(str)

If intZ < 10 Then   lblResult.Text = "Invalid Data"  

Dim str As String = "123" If str.IsNumeric Then   lblResult.Text = "It is a number." End If  

Select Case intX   Case < 0     lblResult.Text = "Value too low."   Case > 100     lblResult.Text = "Value too high."   Case Else     lblResult.Text = "Value just right." End Select

Answer 1

Syntax Error Detection and correction

'Syntax error detect and change --> Declare X and Z as integer
        Dim X As Integer = 0
        Dim Z As Integer = 0
        If X > 100 Then
            lblResult.Text = "Invalid Data"
        End If

        Dim str As String = "Hello"
        Dim intLength As Integer
        'Syntax error detect and change --> Length method call
        intLength = str.Length()

        If Z < 10 Then
            lblResult.Text = "Invalid Data"
        End If
        'Syntax error detect and change --> Dstr already declared so inititalize
        str = "123"
        If IsNumeric(str) Then
            lblResult.Text = "It is a number."
        End If
        'Syntax error detect and change --> Select case arrangement
        Select Case X
            Case < 0
                lblResult.Text = "Value too low."
            Case > 100
                lblResult.Text = "Value too high."
            Case Else
                lblResult.Text = "Value just right."
        End Select