First, I want to explain an assumption that I make for this answer. It is not always true, but quite often: Interfaces are adjectives; classes are nouns. (Actually, there are interfaces that are nouns as well, but I want to generalize here.) So, e.g. an interface may be something such as IDisposable, IEnumerable or IPrintable. … Read more
The Inversion-of-Control (IoC) pattern, is about providing any kind of callback (which “implements” and/or controls reaction), instead of acting ourselves directly (in other words, inversion and/or redirecting control to the external handler/controller). For example, rather than having the application call the implementations provided by a library (also known as toolkit), a framework calls the implementations provided by the application. The Dependency-Injection (DI) pattern is a … Read more