File Directory VB.Net

Imports System
Imports System.IO
Imports System.Xml
Imports System.Xml.Serialization
    Public Class MainClass
        Public Shared Sub Main()
            Dim roster = New EmployeeCollection(DateTime.Now)
            Dim employees = New Employee() _
                {New Employee With {.Id = 1, .Name = "A", _
                                    .Title = "Coder", _
                                    .HireDate = DateTime.Now, _
                                    .HourlyRate = 100.0}, _
                 New Employee With {.Id = 4, .Name = "B", _
                                    .Title = "Coder", _
                                    .HireDate = DateTime.Now, _
                                    .HourlyRate = 100.75}}
            roster.Employees = employees
            Dim serializer As New XmlSerializer(GetType(EmployeeCollection))
            Dim fs As New FileStream("EmployeeCollection.xml", FileMode.Create)
            serializer.Serialize(fs, roster)
            fs.Close()
            roster = Nothing
            fs = New FileStream("EmployeeCollection.xml", FileMode.Open)
            roster = DirectCast(serializer.Deserialize(fs), EmployeeCollection)
            serializer.Serialize(Console.Out, roster)
        End Sub
    End Class
     _
    Public Class EmployeeCollection
         _
        Public LastUpdated As DateTime
         _
        Public Employees As Employee()
        Public Sub New()
        End Sub
        Public Sub New(ByVal update As DateTime)
            Me.LastUpdated = update
        End Sub
    End Class
    Public Class Employee
         _
        Public Name As String = String.Empty
         _
        Public Title As String = String.Empty
         _
        Public HireDate As DateTime = Date.MinValue
         _
        Public HourlyRate As Decimal = 0
         _
        Public Id As String = String.Empty
        Public Sub New()
        End Sub
        Public Sub New(ByVal employeName As String, ByVal employeeTitle As String, ByVal employeeHireDate As DateTime, ByVal employeeHourlyRate As Decimal)
            Me.Name = employeName
            Me.Title = employeeTitle
            Me.HireDate = employeeHireDate
            Me.HourlyRate = employeeHourlyRate
        End Sub
    End Class