The Adapter Pattern allows incompatible interfaces to communicate. Learn how it works by building an application that calculates prime numbers. The Adapter Pattern is a common software design pattern ...

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 ...

Java SE 14 (March 2020) introduced a limited form of pattern matching as a preview feature, which becomes a permanent feature in Java SE 16 (March 2021). The first phase of pattern matching is limited ...