Java Resources

Java Performance: For-Looping vs. Streaming

Is counting upwards or downwards in a for-loop the most efficient way of iterating? Sometimes the answer is neither.

September 9, 2019

by Per-Åke Minborg

· 50,820 Views · 6 Likes

[Kotlin Pearls] Unit, Nothing, Any (And Null)

The Type Hierarchy in Kotlin is unparalleled in terms of interoperability.

September 9, 2019

by Uberto Barbini

· 27,037 Views · 5 Likes

Streaming Live Updates From a Reactive Spring Data Repository

Learn how to stream live updates from a reactive Spring Data repo.

Updated September 5, 2019

by Dan Newton

· 25,400 Views · 2 Likes

S3 and AWS Java SDK 2.0: Look Before You Leap

Before integrating AWS S3 into your Java application — be sure to look both ways before jumping in.

September 5, 2019

by Duncan Brown

· 14,048 Views · 3 Likes

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

· 47,655 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

· 14,628 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

· 56,981 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

· 121,681 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

· 16,113 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

· 61,819 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

· 14,512 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

· 57,657 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

· 13,845 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

· 39,319 Views · 29 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

· 592,887 Views · 349 Likes

Avoiding NullPointerException in Java 8

How do you prevent NullPointerExceptions in your Java code?

August 26, 2019

by Amanuel G. Shiferaw

· 44,373 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

· 281,171 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

· 35,529 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

· 390,562 Views · 66 Likes

An Introduction to JUnit

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

August 22, 2019

by Justin Albano

CORE

· 25,326 Views · 8 Likes

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