Overview

Design patterns can speed up the development process. Many of the most common computer science problems have already been solved with well$-$established approaches. While code examples are often shown when describing a pattern, the code is not intended to simply be copied into your application. It is important to know what problem the pattern is designed to solve and if it fits your situation. When you find a pattern that does, you also get the added benefit of communication and familiarity. For example, simply stating that a class implements the singleton pattern lets other programmers instantly know how your class is built and what it is intended to do$.$