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 ...

The Observer pattern is probably one of the best ways to reduce coupling between objects. For example, if you are writing a typical application, you may decide to provide a factory or manager that ...

We discuss some of the most common design patterns in Java and how they can help you solve common coding issues. Learn more. A design pattern is a well-established and documented solution to a common ...

For every development difficulty you encounter, chances are good that another developer has encountered the same problem. Like most developers, you’re pressured to build reliable software fast and ...