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 ...

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.

Learn how to use the Command pattern to encapsulate requests as objects that you can execute alone or in sequence in your Java programs. Topics Spotlight: AI-ready data centers ...

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 ...

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, ...