The strategy design pattern is a Gang-of-Four (GoF) design pattern. It is a behavioral pattern used to define a family of algorithms and encapsulate each of them inside a class.

Numerous design patterns let you extend functionality; for example, in Java Design Patterns you’ve seen how to extend functionality with the Proxy, Decorator, and Strategy patterns.

For example, aspiring players who want to learn how a Grandmaster played a particular game read a book that describes each move in the game, and they repeat each move on a chessboard in the sequence ...

Florals, stripes, leopards and plaids—a cocktail of prints gives a room a made-for-you depth. But there’s a fine line between chic personality and chaotic clashing.