Interface Examples

Example : Interface Examples in VB .Net program to demonstrate the Interface. 

Module Module1
    Interface Program1
        Sub Output()
    End Interface

    Class Example
        Implements Program1
        Sub Output() Implements Program1.Output
            ' Method Implementation
            Console.WriteLine("Interface Executed")
        End Sub
    End Class

    Sub Main()
        Dim Obj As New Example()
        Obj.Output()
    End Sub
End Module

Output:
Interface Executed

Example : Interface Examples in VB .Net program to demonstrate Multiple Inheritance using an Interface. 

Module Module1
    Interface A
        Sub Display1()
    End Interface

    Interface B
        Sub Display2()
    End Interface

    Interface C
        Sub Display3()
    End Interface

    Class Example
        Implements A, B, C

        Sub Display1() Implements A.Display1
            Console.WriteLine("Display1() Function Executed")
        End Sub

        Sub Display2() Implements B.Display2
            Console.WriteLine("Display2() Function Executed")
        End Sub

        Sub Display3() Implements C.Display3
            Console.WriteLine("Display3() Function Executed")
        End Sub
    End Class

    Sub Main()
        Dim Obj As New Example()
        Obj.Display1()
        Obj.Display2()
        Obj.Display3()
    End Sub
End Module

Output:
Display1() Function Executed
Display2() Function Executed
Display3() Function Executed