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Lesson 15 - Type casting and object hierarchy in VB.NET

In the previous lesson, Interfaces in VB.NET, we learned about interfaces and created a Pterodactyl class in Visual Basic .NET. In today's tutorial, we'll continue working on our interface project. We will also go over type casting and reveal more secrets of the object-oriented programming.

Type casting

Let's go back to our previous project and change the code in the Main() method to have our pterodactyl stored in a variable of the IBird type:

Dim bird As IBird = New Pterodactyl()

We're allowed to do that because the Pterodactyl class implements


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Article description

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You'll learn how to cast an instance to another data type using interfaces in Visual Basic .NET. You will also learn about and create an object hierarchy.

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Article has been written for you by Michal Zurek