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 ....


Deployment with Drools 6.0


KieScanner The 6.0 KieScanner replaces the 5.x KnowledgeAgent. It uses embedded Maven to allow the resolving and retrieving of jars at runtime. 6.0 applications can now easily support dependencies and transitive dependencies; using well known Maven semantics for versioning. It allows for deployment on the class path and also dynamically at runtime. Currently it supports manual “scanNow” and interval polling, ...

Read More »

Reactive Cassandra


Or an adventure on reading data reactively from Cassandra. Overview Let’s first try to define what reactive means from programming point of view. Functional reactive programming is programming paradigm for reactive programming using the building blocks of functional programming. Functional programming is a programming paradigm, a style of building the structure and the elements of computer programs, that treats computation, ...

Read More »

10 Persona Tips for Agile Product Management


1. Start with Provisional Personas As its name suggests, a provisional persona is not a fully-fledged, detail rich user model, but a first version that is good enough to start discovering the right user experience and the right product features. Working with sketchy but good enough personas is particularly helpful in an agile and lean context where we want to ...

Read More »

Java, the Steam controller and me


Do you ever wondered if you could use existing stuff for something new? I saw some footage of the so-called ‘Steam controller’ (SC from now on) and looked at my game pad. Asking myself if it would be possible to use it in a steamy-like way, I’ve found some Java libraries and created a project that I’d like to share ...

Read More »

Significant Software Development Developments of 2013


At the end of each calendar year, I like to summarize some of the most significant developments in the software development industry that happened during the year that is ending. The choice of these is entirely subjective and obviously colored by my own experience, background, perceptions, and preferences. Not worrying about the opinionated content of such a post, I now ...

Read More »

Closing 2013 with Core Java Posts


As 2013 starts drawing to a close, I have recently spotted several posts related to what I consider “core Java” knowledge appearing. This post is a listing of three posts and a forum with brief descriptions of these. I have two purposes in doing this: (1) to help others be aware of the existence of these fine posts and (2) ...

Read More »

The good Agile demand curve


I’ve been slow with this entry on Agile and the Demand Curve, apologies. Part of the reason for the delay is software demand is not simple. In my last entry on software economics I discussed why the Software Demand curve for custom software is both high (i.e. people want a lot of software) and inelastic (i.e. increases in costs don’t ...

Read More »

Java: Using the specification pattern with JPA


This article is an introduction to using the specification pattern in Java. We also will see how we can combine classic specifications with JPA Criteria queries to retrieve objects from a relational database. Within this post we will use the following Poll class as an example entity for creating specifications. It represents a poll that has a start and end ...

Read More »

java.util.Random in Java 8


One of the neat features of java.util.Random class in Java 8 is that it has been retrofitted to now return a random Stream of numbers. For eg, to generate an infinite stream of random doubles between 0(inclusive) and 1(exclusive):               Random random = new Random(); DoubleStream doubleStream = random.doubles(); or to generate an infinite ...

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.