Use namespace to remove the conflicts : namespace « Language Basics « VB.Net Tutorial

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VB.Net Tutorial » Language Basics » namespace 
1.6.4.Use namespace to remove the conflicts
Namespace Network
    Class Address
        Public IP As String
        Public DomainName As String

        Public Sub New(ByVal IPAddr As String, ByVal Domain As String)
            IP = IPAddr
            DomainName = Domain
        End Sub

        Public Sub ShowAddress()
            Console.WriteLine("IP: " & IP)
            Console.WriteLine("Domain: " & DomainName)
        End Sub
    End Class

End Namespace

Namespace Mailing
    Class Address
        Public Street As String
        Public City As String
        Public State As String
        Public Zip As String

        Public Sub New(ByVal Street As String, ByVal City As String, ByVal State As String, ByVal Zip As String)
            Me.Street = Street
            Me.City = City
            Me.State = State
            Me.Zip = Zip
        End Sub

        Public Sub ShowAddress()
            Console.WriteLine("Street: " & Street)
            Console.WriteLine("City: " & City)
            Console.WriteLine("State: " & State)
            Console.WriteLine("Zip: " & Zip)
        End Sub
    End Class

End Namespace

Module Module1
    Sub Main()
        Dim IP As New Network.Address("122.111.222.112""www.SomeSite.com")
        Dim address As New Mailing.Address("122 Main", _
          "Houston""Texas""77469")

        IP.ShowAddress()
        Console.WriteLine()
        address.ShowAddress()
    End Sub

End Module
IP: 122.111.222.112
Domain: www.SomeSite.com

Street: 122 Main
City: Houston
State: Texas
Zip: 77469
1.6.namespace
1.6.1.class definition with namespaceclass definition with namespace
1.6.2.Define your own namespace
1.6.3.Use Namespace
1.6.4.Use namespace to remove the conflicts
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