Mother Nature is helping us explain an atmospheric phenomenon this week called a “Rex block” pattern with two excellent ...

The Observable design pattern is used in many important Java APIs. One well-known example is a JButton that uses the ActionListener API to execute an action. In this example, we have an ActionListener ...

One of our biggest challenges as software developers is organizing our code so that it is easier to extend and maintain. The Command pattern helps us do that by encapsulating all the data required to ...

Patterns summarize discovered design solutions that make people most comfortable in experiencing and using built form. Their relative merit is that they were decided on a firm (in many cases ...

One of the most reliable, recurring market patterns is the concept that sharp impulse moves followed by a quiet period usually lead to another move in the same direction. An impulse move is simply a ...