Java Resources

Create and Publish Your Rest API Using Spring Boot and Heroku

In this tutorial, you will learn how to use Spring Boot to develop RESTful API and publish your API to Heroku.

April 4, 2019

by Paul Tofunmi

· 44,103 Views · 12 Likes

Redis for Java Developers: Tutorial and Code Examples

This article will go over a few common use cases of Redisson.

April 1, 2019

by Nikita Koksharov

· 21,620 Views · 6 Likes

Securing REST APIs With Client Certificates

Securing REST APIs with server-side certificates is a best practice. But what if you want to take security to the next level and require client certificates?

Updated March 31, 2019

by Pavel Sklenar

· 292,962 Views · 36 Likes

Akka Stream: Map And MapAsync

We take a look at two methods of using Akka Streams to query big data sets, and explain why one is more performant than the other.

Updated March 29, 2019

by Piyush Rana

· 14,583 Views · 5 Likes

Java Immutable Objects

Want to learn more about immutable objects in Java?

March 29, 2019

by Yogen Rai

· 47,069 Views · 36 Likes

Java 12: Mapping With Switch Expressions

Learn more about mapping with the latest Java 12 switch expressions.

March 28, 2019

by Per-Åke Minborg

· 34,439 Views · 16 Likes

Java 12: The Teeing Collector

Want to learn more about the newest collector to Java 12?

March 26, 2019

by Marco Molteni

· 32,827 Views · 21 Likes

Connect Oracle SQL Developer to Amazon Redshift

This guide will walk you through the process of setting up a PostgreSQL JDBC driver and an SSL connection.

Updated March 26, 2019

by Anna Shmelkova

· 17,589 Views · 3 Likes

Better Default NullPointerException Messages Coming to Java?

Are enhancements to default NullPointerException messages coming to JDK 13?

March 26, 2019

by Dustin Marx

· 18,662 Views · 5 Likes

When to Use Java 8 Default Methods in Interfaces

When should you use Java 8 default methods?

March 25, 2019

by Mohammad Nadeem

· 25,116 Views · 4 Likes

Java Switch Statement

Switch over to this tutorial on using Java switch statements.

March 25, 2019

by Yogen Rai

· 18,569 Views · 7 Likes

A Guide to the InfluxDBMapper and QueryBuilder for Java: Part 2

Learn how to execute some queries against InfluxDB using the QueryBuilder combined with the InfluxDBMapper.

March 25, 2019

by Emmanouil Gkatziouras

CORE

· 8,543 Views · 5 Likes

Immutable Data Structures in Java

A final reference does not make your objects immutable!

March 22, 2019

by Erik Pragt

· 49,900 Views · 35 Likes

The Benefit of Using AssertThat Over Other Assert Methods

The latest JUnit4.4 release notes indicate that it's better to use AssertThat over other Assert methods.

March 22, 2019

by Mohammad Nadeem

· 36,788 Views · 6 Likes

Offline Resolution of XSDs Using Maven JAXB

Learn more about this offline resolution for using the JAXB Maven Plugin.

Updated March 20, 2019

by Aritra Nag

· 14,105 Views · 2 Likes

Redis in a Microservices Architecture

Learn how to use Redis with Spring Cloud and Spring Data to provide configuration server, a message broker, and a database.

March 20, 2019

by Piotr Mińkowski

· 56,322 Views · 27 Likes

Var and Language Design in Java

Learn everything you need to know about var in Java.

March 20, 2019

by Peter Verhas

CORE

· 12,301 Views · 14 Likes

Message Routing in Akka

Here's an introductory article on message routing in Akka with Scala.

Updated March 19, 2019

by Efthymios Vafeiadis

· 14,771 Views · 9 Likes

Migrating From Lombok to Kotlin

Shorter code should never be the goal. It’s the readability of the code that matters.

March 19, 2019

by Erik Pragt

· 43,755 Views · 32 Likes

21 Websites to Learn Coding/Programming for Free Online

Whether you're learning languages, processes, frameworks, or just want to get started, there's sure to be a website here for you.

March 18, 2019

by Javin Paul

· 18,748 Views · 13 Likes

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