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Question: How does VB.NET/C# achieve polymorphism?

Answer: VB.Net / C# provide polymorphism through the following mechanisms:

1. Inheritance -- base class provides overridable methods which are re-implemented in derived classes.
2. Interface -- different class can implement same interface, resulting in different implementations of interface methods.
3. Virtual methods -- achieve runtime polymorphism.

VB.Net / C# provide polymorphism through the following mechanisms:

1. Inheritance -- base class provides overridable methods which are re-implemented in derived classes.
2. Interface -- different class can implement same interface, resulting in different implementations of interface methods.
3. Virtual methods -- achieve runtime polymorphism. Source: CoolInterview.com

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