This simple tutorial will show you how to parse JSON in java using JSON-simple from Google. JSON-simple is a bit old now but very stable and tested by large and small companies. I use this framework every day, so making a tutorial was a no-brainer.

I write a lot of small java applications and need a good command line interpreter. Apache Common CLI helps me keep track of options and arguments. Apache have a lot of great tools in their tool chain and even if some of them are common they have a great track record of usability.

We write a simple example in java to run a validation using Schematron. The framework Schematron is a way to do easy validation of XML documents and create output that is easily readable by someone working with these documents.

In this video, I get back to the basics and show you how to use the code from my series Java By Example to read data from an excel spreadsheet in order to populate your invoice PDF.

I try to create a herddb using zookeeper and bookkeeper. I talk about the challenges I found and what the current state of the project is in my opinion.

We look into how to build a Debian package from source after we have done some patching of a bug that we needed to solve in the original package. Debian is a great system with good tools for building packages.

We look into the slim framework version 4 and do a quick review. I looked into the slim framework back in 2019 and this is a revisit where I review the changes and see if the latest version 4 has improved from the earlier slim releases.

We look into the codecombat game that helps pupils learn coding and guide teachers in how to teach computer science in a fun and engaging way.

We solve today’s challenge at the advent of code 2020. Come join us and have some fun.

We solve today’s challenge at the advent of code 2020. Come join us and have some fun.