I think there is a hugh difference between asking a beginner question such as "what's the purpose of an interface", vs. asking "what is an interface".

There are very few descriptions of Inheritance in books that don't go into what an interface is. But it is also not clear from most books good guidelines for inheriting from a base class vs. implementing an interface.

As the 2nd question shows some motivation on your part. Asking the first question shows you are trying to learn the language piecemeal. There's a very good possibility you don't know what polymorphism is. So most likely you're hoping for someone to basically write an entire chapter for you.

Many people do that on-line for some, enforcing their lack of motivation. But I see more and more answers trying to help guide the original poster towards doing some basic reading before asking the "what is..." type of question.

>I have had the same experiences. If somebody were to go back to my beginning on the UT they would find many beginner questions. I probably would have spent my time wiser by investing in some books, some training, etc, that would have built me towards the answers I needed instead of just giving me the answer.
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>I have asked some beginner questions as well but that is because, even with the reading, C# has its own undocumented quirks that every programming language has. You don't lean these things by reading - you learn them from experience < s >.