Rewrite object-oriented code using functional techniques. Get started with lambdas, method references, functional interfaces, and the Streams API in Java Welcome back to this two-part tutorial ...

The Comparable interface is simple because it only has one method; however, implementing the compareTo method can become tedious if you need to sort your object by multiple properties (especially if ...

Java interfaces are different from classes, and it’s important to know how to use their special properties in your Java programs. This tutorial introduces the difference between classes and interfaces ...