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Editor to share with you VB.NET how to achieve multiple inheritance, I hope you will learn something after reading this article, let's discuss it together!

VB.NET multiple inheritance

I noticed that C # allows multiple inheritance (multiple inheritance), but I can only use deep inheritance (deep inheritance) in VB.NET. Can multiple inheritance be used in VB.NET? Or is that all VB.NET programmers can do?

When I ask this question, I may have been thinking about C++. C++ can support multiple inheritance, but neither C# nor VB.NET supports it. They follow the same route as Java, that is, they only allow inheritance from single base classes (single base class). The inheritance relationship represents the IS A relationship between two classes. If you consider that a class may be classified through multiple IS A relationships, then the lack of multiple inheritance becomes a factor in this possibility. Let's take the three classes Employee, USPresident and USCitizen as examples. The relationships between them are: USPresident IS An Employee, USPresident IS A USCitizen

In C++, USPresident can be derived from multiple base classes; in .NET languages, it cannot.

If VB.NET multiple inheritance is supported, then USPresident inherits from both Employee and USCitizen. But in the .NET language, you have to use interfaces to represent multiple IS A relationships. Just like Java, a class can inherit from a base class, and a class can implement multiple interfaces.

According to the .NET Framework documentation (C # language specification), the interface key declares that the reference type has abstract members. In this article, the term members refers to a method, property, or indexer, while the term abstract means that no implementation is provided. When creating an interface, the customary (naming) method is to precede the interface name with the letter I. Although you can ignore this habit, you will find that following this habit makes it particularly easy to distinguish between base classes and interfaces. In Java, developers are used to adding able after the interface (name). From a personal point of view, I like to use these skills on my own interface. The terms used to describe the relationship between classes and interfaces are: we use "x inherits from class y" to denote inheritance; "x implements interface y" to describe the relationship of interfaces. The colon (:) is the operator used to implement the interface.

Inheritance code takes the following form:

VB.NET

Class Derived Inherits Base

C#.NET

Class Derived: Base has finished reading this article. I believe you have some understanding of "how VB.NET implements multiple inheritance". If you want to know more about it, please follow the industry information channel. Thank you for reading!

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