VB.Net Program to demonstrate the multi-level inheritance

Write a VB.Net Program to demonstrate the multi-level inheritance

Here, by demonstrate three classes, Sample1, Sample2, Sample3, we can show the multilevel inheritance. Here, the parent class for Sample2 will be Sample1 and the parent class for Sample3 will be Sample2.

The source code to demonstrate the multi-level inheritance is given below. The program given is successfully compiled and executed.

'VB.net program to demonstrate the multi-level inheritance.

Module Module1
    Class Sample1
        Sub Fun1()
            Console.WriteLine("Sample1.Fun1() called")
        End Sub
    End Class
    Class Sample2
        Inherits Sample1
        Sub Fun2()
            Console.WriteLine("Sample2.Fun2() called")
        End Sub
    End Class
    Class Sample3
        Inherits Sample2
        Sub Fun3()
            Console.WriteLine("Sample3.Fun3() called")
        End Sub
    End Class
    Sub Main()
        Dim obj As New Sample3()
        obj.Fun1()
        obj.Fun2()
        obj.Fun3()
    End Sub
End Module
	

We have created a Module1 module in the program above. Here, three classes have been created: Sampl1, Sample2 and Sample3. Here, Sample1 is the parent class of Sample2 and Sample2 is the parent class of Sample3. Each class contains a method.

At last, we created a Main() function, it is the entry point for the program, here we created the object of Sample3 class, and called methods fun1(), fun2(), fun3(). All the methods will print a message on the console screen.