Learn what a predicate interface is and how to use it in Java. Find out how to create your own custom predicate interface and combine it with other predicates.

This project provides a set of Java code examples illustrating the set of functional interfaces that were added to the JDK’s java.util.function package in Java 8+, their general use cases and usage in ...

Java Supplier interface tutorial. As you can see, the code for the class that implements Java’s Supplier interface is fairly simple. The only requirements are the class declaration and the ...

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 ...

So if you are specifically looking for an example on how to accomplish authentication for instance you can find this in the code of those examples. We provide the example code in order to reduce your ...

The next tutorial in the Java 101 series will introduce method references, which you can combine with lambda expressions to write even more concise, readable Java code. Related content how-to ...