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Java’s Encapsulation - When the Getter and Setter Became Your Enemy
by Otavio Santana CORE

Encapsulation is the key to a good code design, but how to archive it? Java developers automatically think about putting getter and setter in a private attribute.... More

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Refcard #362

Getting Started With Quarkus Serverless Functions

by Daniel Oh CORE

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How to Classify NSFW (Not Safe for Work) Imagery with AI Content Moderation using Java

by Brian O'Neill CORE

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Getting Started With RSocket Kotlin

by Dan Newton

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Top 7 Features in Jakarta EE 10 Release
by A N M Bazlur Rahman CORE

Java EE was the dominant force behind all the enterprise development in Java. Lately, it was renamed Jakarta EE, transitioning from JCP to Eclipse Foundation. This... More

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Refcard #319

Getting Started With Quarkus

by Alex Soto

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Vaadin Apps as Native Executables Using Quarkus Native

by Matti Tahvonen

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Understand Source Code — Deep Into the Codebase, Locally and in Production

by Shai Almog CORE

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DZone's Guide to

Java: New Developments and Features

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Spring, IoC Containers, and Static Code: Design Principles

by Gregory Anne

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What I Miss in Java, the Perspective of a Kotlin Developer

by Nicolas Fränkel CORE

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The Power of Enum: Make Your Code More Readable and Efficient [Video]

by Otavio Santana CORE

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How to Modify Java Command-Line Arguments

by Bikash Daga

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JVM C1, C2 Compiler Thread: High CPU Consumption?

by Ram Lakshmanan CORE

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Remote Debugging and Developer Observability

by Shai Almog CORE

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Kotlin vs Java: Which One Is the Best?

by Aniruddh Agarwal

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Delegating JWT Validation for Greater Flexibility

by Horatiu Dan

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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

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

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

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

Unlocking Unobtrusive JavaScript

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

Dave Crane

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

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

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

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

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

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

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

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Java, JDK & JVM developer news, tutorials and tools

Java Spotlight

Java’s Encapsulation - When the Getter and Setter Became Your Enemy
by Otavio Santana CORE

Getting Started With Quarkus Serverless Functions

How to Classify NSFW (Not Safe for Work) Imagery with AI Content Moderation using Java

Getting Started With RSocket Kotlin

Top 7 Features in Jakarta EE 10 Release
by A N M Bazlur Rahman CORE

Getting Started With Quarkus

Vaadin Apps as Native Executables Using Quarkus Native

Understand Source Code — Deep Into the Codebase, Locally and in Production

Java: New Developments and Features

Spring, IoC Containers, and Static Code: Design Principles

What I Miss in Java, the Perspective of a Kotlin Developer

The Power of Enum: Make Your Code More Readable and Efficient [Video]

How to Modify Java Command-Line Arguments

JVM C1, C2 Compiler Thread: High CPU Consumption?

Remote Debugging and Developer Observability

Kotlin vs Java: Which One Is the Best?

Delegating JWT Validation for Greater Flexibility

Java Partner Resources

More Java

Screen Sharing in Java
by Danylo Didkovskyi

Refactor Switch to a One-Liner
by Ion Pascari

Top 7 Features in Jakarta EE 10 Release

Java’s Encapsulation - When the Getter and Setter Became Your Enemy

Vaadin Apps as Native Executables Using Quarkus Native

Getting Started With RSocket Kotlin

Understand Source Code — Deep Into the Codebase, Locally and in Production

Spring, IoC Containers, and Static Code: Design Principles

The Power of Enum: Make Your Code More Readable and Efficient [Video]

What I Miss in Java, the Perspective of a Kotlin Developer

Understanding Cloud Computing

Kotlin vs Java: Which One Is the Best?

JVM C1, C2 Compiler Thread: High CPU Consumption?

Making Your Life Easier Around Data With Java and Jakarta EE

Build a Quarkus Reactive Application Using Kubernetes Secrets

How Java Apps Litter Beyond the Heap

On Architects, Architecture, and Failures

Publications

Java, JDK & JVM developer news, tutorials and tools

Java Spotlight

Java’s Encapsulation - When the Getter and Setter Became Your Enemy by Otavio Santana CORE

Getting Started With Quarkus Serverless Functions

How to Classify NSFW (Not Safe for Work) Imagery with AI Content Moderation using Java

Getting Started With RSocket Kotlin

Top 7 Features in Jakarta EE 10 Release by A N M Bazlur Rahman CORE

Getting Started With Quarkus

Vaadin Apps as Native Executables Using Quarkus Native

Understand Source Code — Deep Into the Codebase, Locally and in Production

Java: New Developments and Features

Spring, IoC Containers, and Static Code: Design Principles

What I Miss in Java, the Perspective of a Kotlin Developer

The Power of Enum: Make Your Code More Readable and Efficient [Video]

How to Modify Java Command-Line Arguments

JVM C1, C2 Compiler Thread: High CPU Consumption?

Remote Debugging and Developer Observability

Kotlin vs Java: Which One Is the Best?

Delegating JWT Validation for Greater Flexibility

Java Partner Resources

More Java

Screen Sharing in Java by Danylo Didkovskyi

Refactor Switch to a One-Liner by Ion Pascari

Top 7 Features in Jakarta EE 10 Release

Java’s Encapsulation - When the Getter and Setter Became Your Enemy

Vaadin Apps as Native Executables Using Quarkus Native

Getting Started With RSocket Kotlin

Understand Source Code — Deep Into the Codebase, Locally and in Production

Spring, IoC Containers, and Static Code: Design Principles

The Power of Enum: Make Your Code More Readable and Efficient [Video]

What I Miss in Java, the Perspective of a Kotlin Developer

Understanding Cloud Computing

Kotlin vs Java: Which One Is the Best?

JVM C1, C2 Compiler Thread: High CPU Consumption?

Making Your Life Easier Around Data With Java and Jakarta EE

Build a Quarkus Reactive Application Using Kubernetes Secrets

How Java Apps Litter Beyond the Heap

On Architects, Architecture, and Failures

Publications

Java’s Encapsulation - When the Getter and Setter Became Your Enemy
by Otavio Santana CORE

Top 7 Features in Jakarta EE 10 Release
by A N M Bazlur Rahman CORE

Screen Sharing in Java
by Danylo Didkovskyi

Refactor Switch to a One-Liner
by Ion Pascari