Do you want to know how to develop your skillset to become a Java Rockstar?

Subscribe to our newsletter to start Rocking right now!

To get you started we give you our best selling eBooks for FREE!

1. JPA Mini Book

2. JVM Troubleshooting Guide

3. JUnit Tutorial for Unit Testing

4. Java Annotations Tutorial

5. Java Interview Questions

and many more ....


Docker Toolbox


One of the new features introduced in Docker 1.8 is Docker Toolbox. What is this toolbox? The Docker Toolbox is an installer to quickly and easily install and setup a Docker environment on your computer. Available for both Windows and Mac, the Toolbox installs Docker Client, Machine, Compose (Mac only), Kitematic and VirtualBox. Docker Toolbox Docker Toolbox is the fastest ...

Read More »

Top 10 Useful, Yet Paranoid Java Programming Techniques


After coding for a while (eek, almost 20 years or so in my case, time flies when you’re having fun), one starts to embrace those habits. Because, you know… Anything that Can Possibly Go Wrong, Does. This is why people embrace “defensive programming”, i.e. paranoid habits that sometimes make total sense, and sometimes are rather obscure and/or clever and perhaps ...

Read More »

RAM is the new SSD


Your data fits in RAM. Yes, it does. Don’t believe it? Visit the hilarious website. But there is an entirely new dimension to this since last week’s announcement by Intel, which hasn’t gotten enough attention in the blogosphere yet. New 3D XPoint™ technology brings non-volatile memory speeds up to 1,000 times faster than NAND, the most popular non-volatile memory ...

Read More »

Building A Chat App With Codename One Part 4


This tutorial is starting to get interesting…​. In this section we’ll go deep into animations, special effects, search styling and extracting contacts. In the previous sections we built the first form of the app, logged in and now we need to show the actual login form. Even more importantly we need to show it with style like this:     ...

Read More »

Deployment Management Tools: Chef vs. Puppet vs. Ansible vs. SaltStack vs. Fabric


What are the pros and cons of Chef, Puppet, Ansible, SaltStack and Fabric? Working in production today often means continuous deployments and an environment distributed all over the world. When your infrastructure is decentralized and cloud-based and you’re dealing with frequent deployments of largely identical services across largely identical servers, having a way to automate the configuration and maintenance of everything ...

Read More »

It’s easy to document your Play Framework REST API with Swagger


This post orig­i­nally ran on http://​swag​ger​.io (7/30/2015) I hav­ing been using Play Frame­work as a Java-based, lightning-fast REST back­end frame­work for sev­eral projects. Later, I was was excited to find Swag­ger and worked to inte­grate it into a few projects. As I strug­gled with it the first time, I thought it would be use­ful to share my expe­ri­ence and cre­ate ...

Read More »

Examples of caching backfiring on performance


In 2015 it should not surprise anyone that caching frequently used data is likely to improve the performance of the application. Caching certain data structures locally inside the JVM instead of requesting them via remote calls from external storage is a widely used technique. Introducing such caches to your applications is likely to improve the application’s performance both in regards ...

Read More »

Are annotations bad?


I eased off into this topic with my principles on my post about Spring XML vs. Annotations that other day. This easy inlet was also my way of not complicating things too much for my team who is currently involved in writing this new app that will probably have a production life-span for 3-5 years (if we do it right ...

Read More »

From Imperative to Pure-Functional and Back Again: Monads vs. Scoped Continuations


This post accompanies this video and won’t make too much sense without it Last month I gave a talk at the Curry On conference, a new conference co-located with the academic, programming language conference, ECOOP. Curry On is intended to bridge the gap between academia. My academic interests do not include programming languages, which I view as the sub-discipline of computer ...

Read More »

Installing PostgreSQL PL/Java as a PostgreSQL Extension


In 2011 I wrote a series of articles on PostgreSQL PL/Java. The basic information is still solid but there is a now a much easier way to install PL/Java from source. This also eliminates the need to depend on third parties to create packages. These notes will be fairly brief since I assume my readers are already familiar with git ...

Read More »
Want to take your Java Skills to the next level?
Grab our programming books for FREE!
  • Save time by leveraging our field-tested solutions to common problems.
  • The books cover a wide range of topics, from JPA and JUnit, to JMeter and Android.
  • Each book comes as a standalone guide (with source code provided), so that you use it as reference.
Last Step ...

Where should we send the free eBooks?

Good Work!
To download the books, please verify your email address by following the instructions found on the email we just sent you.