Hour 17. Interfaces
When you've always done something the same way using the same methods, it can be quite difficult to switch gears and think about the solution in a different way. Unless you are a seasoned COM programmer, interface-based programming can be a radical switch from the way you logically design and organize your code.
Interfaces play a crucial role in an object-oriented programming language. So much so that some debates have arisen in which many have argued that if a programming language does not support the use of interfaces, it's not an object-oriented programming language.
In this hour you will learn:
What an interface is and why it's useful
How to implement some of the defined interfaces within the .NET Framework
How to define and implement your own interfaces
How to implement interface inheritance
How to use interfaces within a client application
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