Covariance and contravariance are precise terms that describe which conversions are safe on parameters and return types. Learn practical definitions for those terms, what new constructs will be ...

Almost every article or lecture about generics touches on collections and shows how to build a Stack<T>. Collections and stack building are an obvious choice, but generics have many other uses.

Take advantage of delegates to promote flexibility and code reuse in your .NET applications and to implement event-driven programming with ease. A delegate is a type that references a method that has ...