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Articles

Thread behavior in the JVM

Jun 27, 2024 | infoworld.com | Rafael Del Nero |Java Developer |Import Java.util.stream. IntStream

Threading refers to the practice of executing programming processes concurrently to improve application performance. While it's not that common to work with threads directly in business applications, they're used all the time in Java frameworks. As an example, frameworks that process a large volume of information use threads to manage data. Manipulating threads or CPU processes concurrently improves performance, resulting in faster, more efficient programs.
Polymorphism and inheritance in Java

Jun 13, 2024 | infoworld.com | Rafael Del Nero |Java Developer

Polymorphism—or an object's ability to execute specialized actions based on its type—is what makes Java code flexible. Many design patterns created by the Gang Of Four rely on some form of polymorphism, including the Command pattern. In this article, you will learn the basics of Java polymorphism and how to use it in your programs.
Java inheritance vs. composition: How to choose

May 30, 2024 | infoworld.com | Rafael Del Nero |Java Developer |String bodyStyle |new Car .move

Inheritance and composition are two programming techniques developers use to establish relationships between classes and objects. Whereas inheritance derives one class from another, composition defines a class as the sum of its parts. Classes and objects created through inheritance are tightly coupled because changing the parent or superclass in an inheritance relationship risks breaking your code.
Sorting Java objects with Comparable and Comparator

May 23, 2024 | infoworld.com | Rafael Del Nero |Java Developer |Homer Lisa

Programmers frequently need to sort elements from a database into a collection, array, or map. In Java, we can implement whatever sorting algorithm we want with any type. Using the Comparable interface and compareTo() method, we can sort using alphabetical order, String length, reverse alphabetical order, or numbers. The Comparator interface allows us to do the same but in a more flexible way.
Comparing Java objects with equals() and hashcode()

May 16, 2024 | infoworld.com | Rafael Del Nero |Java Developer

Java's equals() and hashcode() are two methods that work together to verify if two objects have the same value. You can use them to make object comparisons easy and efficient in your Java programs. Using equals() and hashcode() in JavaIn this article, you'll learn:Why override equals() and hashcode() in Java?
When to use abstract classes vs. interfaces in Java

Dec 6, 2023 | infoworld.com | Rafael Del Nero |Java Developer |boolean isEmpty |Class List

Abstract classes and interfaces are plentiful in Java code, and even in the Java Development Kit (JDK) itself. Each code element serves a fundamental purpose:Interfaces are a kind of code contract, which must be implemented by a concrete class. Abstract classes are similar to normal classes, with the difference that they can include abstract methods, which are methods without a body. Abstract classes cannot be instantiated.
Value sensitive design and AI: A reconsideration

Aug 1, 2023 | mindtheproduct.com | Phil Hopkins |Java Developer

Current efforts to introduce ethical or moral guidance to intelligent machines are useful, and increasingly urgent. The UK-based Institute for Ethical AI and Machine Learning attempts to grapple with these issues, and has put forth several principles for those who make these products. But the discipline called Value Sensitive Design (VSD) has been investigating this matter in AI and non-AI contexts for years, and offers us some useful preparation for this moment.
All about Java class loaders

Jun 29, 2023 | infoworld.com | Rafael Del Nero |Java Developer

Java class loaders are a component of the Java virtual machine (JVM) and are responsible for loading Java classes into memory at runtime. When a Java program is executed, one or more class loaders locate and load all the classes that are needed to run the program. A Java class loader works by converting a class file into a Java class that can be executed by the JVM.
How to use callbacks in Java

Feb 28, 2023 | infoworld.com | Rafael Del Nero |Java Developer |asynchronousCallback.performAsynchronous Action

A callback operation in Java is one function that is passed to another function and executed after some action is completed. A callback can be executed either synchronously or asynchronously. In the case of a synchronous callback, one function is executed right after another. In the case of an asynchronous callback, a function is executed after an undetermined period of time and happens in no particular sequence with other functions.