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 ....

 

 

Building A Chat App With Codename One Part 5

The chat UI is what we’ve been working at and in todays post we are going to build exactly that! Even better…​ We’ll integrate with Pubnub to make the app almost fully functional as a rudimentary chat app, which is pretty spectacular. In this section we’ll cover UI, storage (externalization), Pubnub & its JSON API…​ We’ll also use InteractionDialog to ...

Read More »

On programming in the summer

In the summer my training and consulting business gets quiet. That allows me to take some holiday and to pursue some stuff I don’t get much time for otherwise. This summer I’ve picked up a programming idea I started last summer, worked on over Christmas and still haven’t finished. This means I’m programming! It is getting close to 10 years ...

Read More »

How to Use Continuous Planning

If you’ve read Reasons for Continuous Planning, you might be wondering, “How can we do this?” Here are some ideas. You have a couple of preconditions: The teams get to done on features often. I like small stories that the team can finish in a day or so. The teams continuously integrate their features. Frequent features with continuous integration creates an ...

Read More »

Procedure-Like Functions in PostgreSQL PL/pgSQL

PostgreSQL does not support stored procedures in the sense that a database such as Oracle does, but it does support stored functions. In this post, I look at a few tactics that can make the use of a stored function in PostgreSQL (stored function and its calling code both written in PL/pgSQL) feel like using a stored procedure. These simple ...

Read More »

Easily generate SSL certificates and htpasswd files with Docker

So you don’t have installed OpenSSL or apache2-utils on your laptop, but you have Docker installed and you want to generate SSL (self-signed or not) certificates and an htpasswd file for basic authentication ? Follow those easy steps! Generate SSL certificates from a Docker container I gathered those steps from this nice article from Digital Ocean (How To Create a ...

Read More »

The Story with Story Points

I don’t like story points. I think this is part of my crusade against complexity. You can catch a glimpse of  it here. Story points were invented as supporting beams for the bridge between business and development that would later be called agile. They started with a very good concept that wasn’t there before: The story. Remember those hundred page specs, and ...

Read More »

Hello World in Vaadin & DukeScript

On the face of it, Vaadin—and GWT in general—has a lot in common with DukeScript. Both are focused on providing browser-oriented solutions for Java developers and have good integration with IDEs, thanks to their native support for Maven. However, these aspects are really all that they have in common. From the programming model, to how the frameworks process the code, to how applications are ...

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:

  • Spring Interview QnA
  • Multithreading & Concurrency QnA
  • JPA Minibook
  • JVM Troubleshooting Guide
  • Advanced Java
  • Java Interview QnA
  • Java Design Patterns