See the Java 101 Java interfaces tutorial for a more in-depth introduction to using interfaces in your Java programs, including where and where not to use default, static, and private methods.

Chapter 13 - Abstract Classes and Interfaces: Examples of how to use Abstract classes and Interfaces. Chapter 14~16 - Graphical User Interface: Examples on how to create GUIs using JavaFX as well as ...

As examples of its implementation in JDK we have : java.util.Calendar, ResourceBundle() and NumberFormat getInstance(); valueOf() method in wrapper classes like Boolean , Integer etc. Abstract Factory ...

The Positional Shape Hierarchy: Let's now deal with a more complicated example of a positional shape inheritance hierarchy. It is illustrated below graphically; the superscript A is used to denote ...

Introduced with the Java 17 release, pattern matching enhances the instanceof operator so Java developers can better check and object's type and extract its components, and more efficiently deal with ...