In this Java 101 tutorial, I’ve explained how interfaces differ from classes, and showed you how to declare, implement, and extend interfaces in your Java programs.

There are only a few key intefaces you need to master in order to become a competent functional programmer. If you understand the concepts laid out in this functional Consumer interface example, ...

Traditional Java 8 Predicate example. While the Java 8 Predicate is a functional interface, there's nothing to stop a developer from using it in a traditional manner.Here's a Java Predicate example ...

This is an in-depth java tutorial for beginners. ... This not only serves as an interface for your Java (or Kotlin) code, but also acts as a bridge for accessing Android-specific code from the SDK.

Learn about serialization in Java with our comprehensive tutorial. ... Java provides the Externalizable interface. ... Top Java IDEs and Code Editors.

If you’ve read my Java 101 tutorial introducing static classes and inner classes, you should be familiar with the basics of working with nested classes in Java code.