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 ....

 

 

Arquillian tests on a WildFly instance hosted on OpenShift

jboss-wildfly-logo

Tech Tip #54 explained how to enable Arquillian for an existing Java EE project. In that tip, the tests were run against a locally installed WildFly server. Would the same adapter work if this WildFly instance was running on OpenShift ? No! Because the security constraints and requirement of a PaaS, as opposed to a xlocalhost, are different. Lets take a look at what’s required ...

Read More »

Between 0 and 1 – PWM with Raspberry Pi

software-development-2-logo

Switch on and off an LED and let run a motor at one speed and direction is easy, but what if I want to e.g. control the brightness of an LED or control motor-speed? A kind of analog signal is needed: This is done with Pulse-width modulation (PWM). PWM is a “modulation technique that conforms the width of the pulse, ...

Read More »

Don’t Block The UI

android-logo

I’ve talked with many end users about their badly written apps grievances and I’ve come to the conclusion that it isn’t a matter of native vs. cross platform or even HTML. Its a frustration issue, driven by unintuitive apps (hidden gestures etc.) and slow performance. The slow performance bit is the most misunderstood, there is a “feeling” of sluggishness that ...

Read More »

Using the “Do You Have Any Questions?” Question

career-logo

During most interviews, an interviewer provides the candidate the opportunity to ask questions. In most cases the highly-anticipated “Do you have any questions?” question falls towards the end of the session, though some companies today throw candidates a curveball and start the interview this way (consider yourself warned). Many candidates use this invitation to gather information that will be helpful in making a decision on any ...

Read More »

Do you really want to speed up your Maven compile/packaging? Then takari lifecycle plugin is the answer.

apache-maven-logo

Like many of you out there, I am working with a multi module Maven project. It is not a huge one comparing to many systems out there, it has 15 modules, with 3 different ear deployments, lots of parametrization with property files and around 100K lines of Java code. During peak development times, the code is heavily refactored, due it’s ...

Read More »

Agile Testing Days 2014–The #AgileTD Post

agile-logo

Second time around is even better. And much more fun. You know people, who know you. You meet new people, who want to share and talk and ask. Oh and there’s beer, more beer. Thank you for all the people I met and re-met. You are awesome. You make ATD what it is. It is now summary time. Let’s recap, ...

Read More »

Spark: Parse CSV file and group by column value

scala-logo

I’ve found myself working with large CSV files quite frequently and realising that my existing toolset didn’t let me explore them quickly I thought I’d spend a bit of time looking at Spark to see if it could help. I’m working with a crime data set released by the City of Chicago: it’s 1GB in size and contains details of ...

Read More »

Java Reflection Tutorial – The ULTIMATE Guide (PDF Download)

java-logo

This tutorial is about reflection, the ability of a computer program to examine and modify the structure and behavior (specifically the values, meta-data, properties and functions) of the program at runtime. We are going to explain what reflection is in general and how can be used in Java. Real uses cases about different reflection uses are listed in the next ...

Read More »

Want to take your Java skills to the next level?

Grab our programming books for FREE!

Here are some of the eBooks you will get:

  • Advanced Java Guide
  • Java Design Patterns
  • JMeter Tutorial
  • Java 8 Features Tutorial
  • JUnit Tutorial
  • JSF Programming Cookbook
  • Java Concurrency Essentials