Here's the simplest possible code for creating a custom collection class in the Microsoft .NET Framework that includes support for For…Each loops, an indexer method and initializing collections with { ...

Extension methods provide a great way for extending a class functionality -- but it's interfaces that let you use those methods anywhere you want. Extension methods let you add functionality to an ...

Classes, fields, methods, constructors, and objects are the building blocks of object-based Java applications. This Java tutorial teaches you how to declare classes, describe attributes via fields, ...

Learn how to use Java annotations to associate metadata with classes, methods, and other application elements in your Java programs. There are times when you need to associate metadata, or data that ...

An abstract class is a template definition of methods and variables in a specific class, or category of objects. In programming, objects are units of code, and each object is made into a generic class ...