Java Resources

Spring Boot Tutorial: Build a Spring Boot App and Deploy Into Tomcat

Simplify deployment of your application in a few, simple steps.

Updated September 4, 2019

by Lindsay Brunner

· 46,622 Views · 8 Likes

Java Concurrency: CopyOnWrite

Why do we need this technique? And how to use this technique correctly?

September 4, 2019

by Thomas Krieger

· 13,870 Views · 7 Likes

How to Customize Serialization in Java Using the Externalizable Interface

Learn more about custom Java serialization using the Externalizable interface.

Updated September 3, 2019

by Naresh Joshi

CORE

· 56,018 Views · 8 Likes

GraphQL Java Example for Beginners [Spring Boot]

In this article, we will look at a GraphQL Java example and build a simple GraphQL server with Spring Boot.

August 30, 2019

by Swathi Prasad

· 120,778 Views · 34 Likes

Quick Guide to Microservices With Quarkus on Openshift

A quick tutorial to help you use Quarkus.

August 29, 2019

by Piotr Mińkowski

· 15,408 Views · 8 Likes

Reactive Programming in Java: Using the WebClient Class

WebClient is the equivalent of the RestTemplate class — except it works with asynchronous requests.

August 28, 2019

by Jesus J. Puente

· 60,856 Views · 8 Likes

C# and Java Comparison: The C# Struct Advantage

In this article, we discuss the advantage of C#'s struct when compared to Java's use of classes and Junion to offer a struct-like data structure.

August 27, 2019

by Dang Ngoc Vu

· 14,098 Views · 7 Likes

Using Spring Data Redis in Spring Boot 2.0 to Write a Custom Query

See how to use Spring Data Redis in Spring Boot 2.0 to write a custom query.

August 27, 2019

by omid haghighatgoo

· 56,819 Views · 7 Likes

AR and Java By Hand (Part 1): Introduction

Learn more about beginning your own AR project with Java.

August 27, 2019

by Radek Hecl

· 13,531 Views · 3 Likes

Project Loom: Java With a Stronger Fiber

Thanks to Project Loom, a new era of Java is on the horizon.

August 27, 2019

by Luca Venturi

· 38,569 Views · 28 Likes

The JVM Architecture Explained

Click here to check out this overview of the different components of the JVM, along with a very useful diagram!

Updated August 26, 2019

by Jackson Joseraj

· 582,132 Views · 345 Likes

Avoiding NullPointerException in Java 8

How do you prevent NullPointerExceptions in your Java code?

August 26, 2019

by Amanuel G. Shiferaw

CORE

· 43,608 Views · 5 Likes

Add Custom Functionality to a Spring Data Repository

Take a look at how Spring Data allows us to add custom methods to a Spring Data Repository, complete with plenty of code examples.

Updated August 23, 2019

by Emmanouil Gkatziouras

CORE

· 279,789 Views · 26 Likes

Ant-to-Maven Conversions: The Painless Method

You no longer need to sweat it over Ant-to-Maven conversions. We've got you covered.

August 23, 2019

by Dinusha Nirmal

· 34,021 Views · 2 Likes

How Do Annotations Work in Java?

Grab some coffee and get ready to dive into the world of annotations.

August 22, 2019

by Yashwant Golecha

· 385,383 Views · 65 Likes

An Introduction to JUnit

An overview of JUnit 4, including its impact on testing.

August 22, 2019

by Justin Albano

CORE

· 24,350 Views · 8 Likes

How To Learn Any Programming Language Online in 2019

The different programming languages, and where to learn them.

August 22, 2019

by John Selawsky

· 22,468 Views · 3 Likes

Java Garbage Collection Types and Settings in Jelastic PaaS

Let's clarify what garbage collection is, what it does for Java applications, and how it works within Jelastic PaaS.

August 22, 2019

by Tetiana Fydorenchyk

· 8,658 Views · 2 Likes

Mule Maven Plugin for CloudHub Deployment

Explore the Mule Maven plugin for CloudHub deployment.

August 21, 2019

by Abhay Yadav

· 18,674 Views · 4 Likes

JDBC: Emulating a Sequence

See how to emulate a sequence.

August 21, 2019

by Michal Jastak

· 9,914 Views · 1 Like

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