Strategy is a fairly simple pattern that serves as an example of how to get your feet wet with the GoF design patterns generally; Visitor is more complex and intermediate in scope.

When a design pattern is commonly used but is ineffective and/or counterproductive, the design pattern is known as an anti-pattern. One might argue that Double-checked locking as used in JDK 1.4 ...

Design patterns are used throughout the computer programming world for numerous reasons, but most resonantly, because they are an informed technique that lends itself to increased innovation and ...