Before we dive into the Composite pattern, I must first define composite objects: objects that contain other objects; for example, a drawing may be composed of graphic primitives, such as lines, ...

A friend of mine — a medical doctor, no less — once told me that he convinced a friend to take a college exam for him. Someone who takes the place of someone else is known as a proxy. Unfortunately ...

The controller handles incoming requests and puts any data the client needs into a component called a model. When the controller's work is done, the model is passed to a view component for rendering.