Explain the difference between an abstract class and an interface... so on.
Explain variance and how it is useful. Give an example of variance usage
Explain how a variable of type (... insert type...) is handled from instantiation to GC

Question

Explain the difference between an abstract class and an interface... so on. 
Explain variance and how it is useful. Give an example of variance usage
Explain how a variable of type (... insert type...) is handled from instantiation to GC

Sigiloso · Accepted Answer

The majority of questions asked should be common knowledge for a mid-level developer. If you don't know the three I listed, you should be studying... ;)

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