Define and use Interface : Interface « Class « VB.Net

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VB.Net » Class » InterfaceScreenshots 
Define and use Interface
Define and use Interface

Imports System

Public Class MainClass

    Shared Sub Main(ByVal args As String())
        Dim doc As New Document("Test Document")
             doc.Status = -1
             doc.Read( )
             Console.WriteLine("Document Status: {0}", doc.Status)    
        End Sub

End Class

Interface IStorable
    Sub Read( )
    Sub Write(ByVal obj As Object)
    Property Status( ) As Integer
End Interface 'IStorable

Public Class Document
    Implements IStorable

    Public Sub New(ByVal s As String)
        Console.WriteLine("Creating document with: {0}", s)
    End Sub 'New

    ' implement the Read method
    Public Sub Read( ) Implements IStorable.Read
        Console.WriteLine("Implementing the Read Method for IStorable")
    End Sub 'Read

    ' implement the Write method
    Public Sub Write(ByVal o As ObjectImplements IStorable.Write
        Console.WriteLine_
           "Implementing the Write Method for IStorable")
    End Sub 'Write

    ' implement the property
    Public Property Status( ) As Integer Implements IStorable.Status
        Get
            Return myStatus
        End Get
        Set(ByVal Value As Integer)
            myStatus = Value
        End Set
    End Property

    ' store the value for the property
    Private myStatus As Integer = 0
End Class 'Document

           
       
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