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

Visual Basic .NET OOP 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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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
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