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.

If you want to master functional programming, the best place to start is with the Java Function interface.This example will show you four different ways to implement this functional interface in your ...

Implementation of the UnaryOperator example. To show you an old school, pre-Java 8 UnaryOperator example, we will create a single class named UnaryOperatorExample and provide the required apply method ...