Learn how to compare marker interfaces with other types of interfaces in Java and when to use them appropriately. Find out the benefits, drawbacks, alternatives, and best practices for marker ...

Abstract classes and interfaces in Java serve fundamentally different purposes. Learn the differences between these Java language elements and how to use them in your programs. Abstract classes ...

To use built-in Predicate interfaces in Java, you create Predicate instances that represent boolean-valued functions of one argument. You can utilize these for filtering or matching, ...

Learn how to use synchronous and asynchronous callbacks in Java—including callbacks with lambda expressions, CompletableFuture, and more.

They are regular Java interfaces that comply with all of the traditional rules of syntax. However, they also work with lambda expressions, which is where functional interfaces really shine. Here is ...

How to use Java’s Function interface. For this Java Function interface example, we will provide a single method named “apply” that takes an Integer as an argument, squares it and returns the result as ...

In the first part, we demonstrated Java multithreading (Multithreading in Java, January 2005, page 90). This article will show how Java can call other programming language functions using JNI (Java ...