We go and visit the Primordial Java Concepts. As rules set in stone we explore the concept of multiple inheritance, method and variable scope (including the final keyword), abstract methods and @override. This is good for those starting up their Mad…

Episode 28. Extra! Extra! JMS Delivering Messages to your App! Extra! Extra! —- Java Message Service (or JMS for short) is a collection of APIs and implementations that allows you to send “messages” across your applcation. But why is it so popular?,…

Episode 27. There’s a Log File in the folder in the middle of the App —- (Sing to the children’s song There’s a hole in the middle of the sea)Logging is part of everyday production debugging life. If you ever had to troubleshoot a production…

As developers, we have to deal with Exceptions every day (or at least every other day). In this episode we dive a bit on exception (and exception handling), plus we talk about certain behaviors that are not so well-understood (try returning from a…

Episode 25. Reflection and vampire classes, and compiling Java from within Java. We have heard the word “Reflection” thrown around, what does it mean? it is a new Twilight series? is it about Vampires? In all, we shed sunlight into what reflection is…

Designers will come to you, and say “Hm, I think your program is not as user-friendly”. And sometimes, when you ask them to elaborate, they seem to follow a hidden and cryptic ritual. They are right, yet, is hard to see how did they come up with those…

It always starts when you do your first Thread.sleep(). Why do I have to check for InterruptedException? is it serious? why do I have to catch it? We start with answering these questions and step down the rabbit hole to discover the inner workings of…