Chapter 7. A Brief Introduction to Object-Oriented Programming

Everything in Microsoft .NET works on the basis of classes and objects. This applies to Microsoft Visual Basic as well as the other .NET programming languages. Even in the era of Visual Basic 6.0, the notion that Visual Basic wasn’t an Object-Oriented Programming (OOP) language was only partly true. Although no regular inheritance existed and polymorphism was available only through emulated late binding, Visual Basic 6.0 already used interfaces for Component Object Model (COM) development, extensively.

The most important OOP aspects are:

  • It saves development costs. With OOP development, you can create useful reusable components. ...

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