Java, JDK & JVM developer news, tutorials and tools

Java Spotlight

View Latest Java Articles

The Best of Java Collections [Tutorials]
by Lindsay Smith

Who doesn't love a good collection? When it comes to building Java applications, the Java Collections Framework (JCF) has become ubiquitous among developers. Since... More

{{ stats[2917721].portal.title }} · {{ stats[2917721].clicks }} clicks · · {{ stats[2917721].timesInEdition }}x

Refcard #318

Java 13

by Simon Ritter

{{ stats[2870992].portal.title }} · {{ stats[2870992].clicks }} clicks · · {{ stats[2870992].timesInEdition }}x

Kotlin Tutorial: Implementing Multiple Interfaces Through Delegation

by Dan Newton

{{ stats[2908932].portal.title }} · {{ stats[2908932].clicks }} clicks · · {{ stats[2908932].timesInEdition }}x

Guide to Java Versions and Features

by Marco Behler

{{ stats[2904346].portal.title }} · {{ stats[2904346].clicks }} clicks · · {{ stats[2904346].timesInEdition }}x

What Does Thread Safety Mean in Java?
by Thomas Krieger

What does it actually mean to be "thread-safe?" Thread safety in Java means that the methods of a class are either atomic or quiescent. So what does atomic... More

{{ stats[2914777].portal.title }} · {{ stats[2914777].clicks }} clicks · · {{ stats[2914777].timesInEdition }}x

Refcard #321

Getting Started With Headless CMS

by Serge Huber

{{ stats[2898906].portal.title }} · {{ stats[2898906].clicks }} clicks · · {{ stats[2898906].timesInEdition }}x

Building Java Applications With Maven

by Justin Albano

{{ stats[2892035].portal.title }} · {{ stats[2892035].clicks }} clicks · · {{ stats[2892035].timesInEdition }}x

Java Advent Calendar: What I Learned About Quarkus in Two Months

by Markus Eisele

{{ stats[2916220].portal.title }} · {{ stats[2916220].clicks }} clicks · · {{ stats[2916220].timesInEdition }}x

DZone's Guide to

Java: New Developments and Features

{{ stats[2777174].portal.title }} · {{ stats[2777174].clicks }} clicks · · {{ stats[2777174].timesInEdition }}x

Java String Tutorials: Become a Java Strings Virtuoso

by Jordan Baker

{{ stats[2877846].portal.title }} · {{ stats[2877846].clicks }} clicks · · {{ stats[2877846].timesInEdition }}x

Tutorial: How to Create a Maven Plugin

by Brian Demers

{{ stats[2908821].portal.title }} · {{ stats[2908821].clicks }} clicks · · {{ stats[2908821].timesInEdition }}x

Java: How to Create Lightweight Database Microservices

by Per-Åke Minborg

{{ stats[2915802].portal.title }} · {{ stats[2915802].clicks }} clicks · · {{ stats[2915802].timesInEdition }}x

Tutorial: Reactive Spring Boot, Part 6: Displaying Reactive Data

by Trisha Gee

{{ stats[2916241].portal.title }} · {{ stats[2916241].clicks }} clicks · · {{ stats[2916241].timesInEdition }}x

Managing Multiple Java Installations

by Sebastian Daschner

{{ stats[2916376].portal.title }} · {{ stats[2916376].clicks }} clicks · · {{ stats[2916376].timesInEdition }}x

Running Spring Boot Application on Kubernetes Minikube on Windows (Part 1)

by Aditya Bhuyan

{{ stats[2909038].portal.title }} · {{ stats[2909038].clicks }} clicks · · {{ stats[2909038].timesInEdition }}x

Running Spring Boot Application on Kubernetes Minikube on Windows (Part 2)

by Aditya Bhuyan

{{ stats[2909205].portal.title }} · {{ stats[2909205].clicks }} clicks · · {{ stats[2909205].timesInEdition }}x

Writing About Java [Prompts]

by Lindsay Smith

{{ stats[2878027].portal.title }} · {{ stats[2878027].clicks }} clicks · · {{ stats[2878027].timesInEdition }}x

View All Java Articles

Building Maintainable and Scalable Software

Learn design patterns quickly with Jason McDonald's outstanding tutorial on the original 23 Gang of Four design patterns, including class diagrams, explanations, usage info, and real world examples.

Jason McDonald

241.4k 830.1k

A Power-User's Guide to Java

Gives you an overview of key aspects of the Java language and references on the core library, commonly used tools, and Java 8 features.

Cay Horstmann

151.7k 457.4k

The De Facto Standard for Version Control

Today, Git is effectively the de-facto standard for software version control, and it is truly an expected tool in every developer’s toolbox. This quick overview demonstrates what a rich and deep DVCS Git truly is, while still being approachable for the newcomer to this collaborative approach to source code and version control. Download this Refcard to learn about the essentials of getting started with Git like cloning existing projects, pushing Git commits to subversion, branching and merging, and more.

Matthew McCullough

158.3k 396.3k

The Representational State Transfer (REST) architectural style is a worldview that elevates information into a first-class element of architectures. REST allows us to achieve the architectural properties of performance, scalability, generality, simplicity, modifiability, and extensibility. This newly updated Refcard explains main HTTP verbs, describes response codes, and lists libraries and frameworks. It also gives additional resources to further explore each topic.

Brian Sletten

135.7k 293.9k

Unlocking Unobtrusive JavaScript

Introduces Ajax, a group interrelated techniques used in client-side web development for creating asynchronous web applications.

Dave Crane

105.4k 237.3k

The Most Popular Agile Methodology

Scrum is a framework that allows people to productively and creatively deliver products of the highest possible value. With over 70% of Agile teams using Scrum or Scrum hybrid, learn more about its benefits in managing complex product development. This newly updated Refcard explores the details of Scrum, including theory, values, roles, and events. It also includes a sample of a popular approach to deliver Integrated Increments in a scaled environment.

Dave West

106.9k 302.7k

Understanding the Core Concurrency Concepts

This Refcard will help Java developers working with multi-threaded programs to understand core concurrency concepts and how to apply them. Overview the key aspects of the Java language and get references on the core library.

Igor Sorokin

115.2k 291.2k

Dependency Injection in a Nutshell

Catalogs the XML elements available as of Spring 2.5 and highlights those most commonly used: a handy resource for Spring context configuration.

Craig Walls

109.9k 313.8k

First Steps in CSS

Covers Core principles of CSS that will expand and strengthen your professional ability to work with CSS. Part one of three.

Molly Holzschlag

95.2k 223.5k

The Core jQuery Reference

Introduces jQuery Selectors, which allow you to select and manipulate HTML elements as a group or as a single element in jQuery.

Bear Bibeault

96.9k 384.2k

Test and Debug Code With Java’s Leading IDE

Eclipse IDE is a cross-platform, multi-purpose, open-source Integrated Development Environment. It is widely used to develop projects in Java, JavaScript, PHP, C++, Scala, and many others. This newly updated Refcard breaks down installing, setting up, and getting started with Eclipse. It also covers productivity tips, creating new projects and files, accessing Source Control Managers, and debugging configurations.

Mickael Istria

86.9k 251.9k

Understanding Selectors

Covers Core principles of CSS that will expand and strengthen your professional ability to work with CSS. Part two of three.

Molly Holzschlag

77.5k 157.4k

Hosted by

Java, JDK & JVM developer news, tutorials and tools

Java Spotlight

The Best of Java Collections [Tutorials]
by Lindsay Smith

Java 13

Kotlin Tutorial: Implementing Multiple Interfaces Through Delegation

Guide to Java Versions and Features

What Does Thread Safety Mean in Java?
by Thomas Krieger

Getting Started With Headless CMS

Building Java Applications With Maven

Java Advent Calendar: What I Learned About Quarkus in Two Months

Java: New Developments and Features

Java String Tutorials: Become a Java Strings Virtuoso

Tutorial: How to Create a Maven Plugin

Java: How to Create Lightweight Database Microservices

Tutorial: Reactive Spring Boot, Part 6: Displaying Reactive Data

Managing Multiple Java Installations

Running Spring Boot Application on Kubernetes Minikube on Windows (Part 1)

Running Spring Boot Application on Kubernetes Minikube on Windows (Part 2)

Writing About Java [Prompts]

Java Partner Resources

More Java

Tutorial: Reactive Spring Boot, Part 7: Subscribing Multiple Consumers
by Trisha Gee

Configuring a Custom ObjectMapper for Spring RestTemplate
by Brian Hannaway

Running Spring Boot Application on Kubernetes Minikube on Windows (Part 2)

The Best of Java Collections [Tutorials]

Managing Multiple Java Installations

This Week in Spring: Releases, Cloud, Spring Boot Tutorials, and More

Java Advent Calendar: Measuring Time — From Java to Kernel and Back

Java Advent Calendar: Celebrating 20 Years of Java Community Collaboration

Search in Big Files Via MappedByteBuffer

Tutorial: How to Create a Maven Plugin

Understanding Cloud Computing

Tutorial: Reactive Spring Boot, Part 6: Displaying Reactive Data

Spring Boot Config Documentation, Two Ways With IntelliJ IDEA

Validation for Free in Scala

Java Advent Calendar: What I Learned About Quarkus in Two Months

Building Java Applications With Maven

Java: How to Create Lightweight Database Microservices

Publications

Java, JDK & JVM developer news, tutorials and tools

Java Spotlight

The Best of Java Collections [Tutorials] by Lindsay Smith

Java 13

Kotlin Tutorial: Implementing Multiple Interfaces Through Delegation

Guide to Java Versions and Features

What Does Thread Safety Mean in Java? by Thomas Krieger

Getting Started With Headless CMS

Building Java Applications With Maven

Java Advent Calendar: What I Learned About Quarkus in Two Months

Java: New Developments and Features

Java String Tutorials: Become a Java Strings Virtuoso

Tutorial: How to Create a Maven Plugin

Java: How to Create Lightweight Database Microservices

Tutorial: Reactive Spring Boot, Part 6: Displaying Reactive Data

Managing Multiple Java Installations

Running Spring Boot Application on Kubernetes Minikube on Windows (Part 1)

Running Spring Boot Application on Kubernetes Minikube on Windows (Part 2)

Writing About Java [Prompts]

{{ $root.model.portal.title }} Zone is presented by the following partners

Java Partner Resources

More Java

Tutorial: Reactive Spring Boot, Part 7: Subscribing Multiple Consumers by Trisha Gee

Configuring a Custom ObjectMapper for Spring RestTemplate by Brian Hannaway

Running Spring Boot Application on Kubernetes Minikube on Windows (Part 2)

The Best of Java Collections [Tutorials]

Managing Multiple Java Installations

This Week in Spring: Releases, Cloud, Spring Boot Tutorials, and More

Java Advent Calendar: Measuring Time — From Java to Kernel and Back

Java Advent Calendar: Celebrating 20 Years of Java Community Collaboration

Search in Big Files Via MappedByteBuffer

Tutorial: How to Create a Maven Plugin

Understanding Cloud Computing

Tutorial: Reactive Spring Boot, Part 6: Displaying Reactive Data

Spring Boot Config Documentation, Two Ways With IntelliJ IDEA

Validation for Free in Scala

Java Advent Calendar: What I Learned About Quarkus in Two Months

Building Java Applications With Maven

Java: How to Create Lightweight Database Microservices

Publications

The Best of Java Collections [Tutorials]
by Lindsay Smith

What Does Thread Safety Mean in Java?
by Thomas Krieger

Tutorial: Reactive Spring Boot, Part 7: Subscribing Multiple Consumers
by Trisha Gee

Configuring a Custom ObjectMapper for Spring RestTemplate
by Brian Hannaway