I was thinking lately I should share some thoughts with my younger colleagues making some first professional steps as software engineers. I'll go straight ahead without any further ado.

Recently I've started playing with Kotlin programming language, and wanted to give it a try. Kotlin gives us possibility to write quite concise code.

This is fairly short blog post. I recently had the case I needed to mock the same method twice during my Junit test case, with different behavior.

Up until recently, I was organizing my bash aliases by putting them directly into my $USER/.zshrc file. While this works, I came across better way to keep the things neatly organized.

IntelliJ IDEA (IDEA shorter) is a cross-platform IDE, developed by JetBrains company. They have IDEs for other programming languages as well, which are not covered by this post. All their tooling is built on a common core, which is a very robust and intelligent development platform.

Ladies and gents, I’m just posting one short reminder to myself and anyone keen to find out how do we query array type fields in Mongodb.

Continuing series of blog posts related to Kotlin, today we’ll together make a sample application showing us how we could automate email sending – using Kotlin programming language. Example is quite simple, and surely – you can enhance it with own features. Application mostly demonstrates compact Kotlin syntax, as well as full compatibility with Java or 3rd party libraries (in this case Apache commons-mail library).

Let's get started explaining some day-to-day jargon used in the software development community, which should make your beginners days as easy as possible.

Pretty much all the topics listed below are significantly simplified for the sake of easier understanding. The idea is that you, as a reader, will be able to find more information about each topic online.

Let's build some simple example that demonstrate ease of Spring Boot use when building applications that need to connect to, in this case - MySql database. Final output will be single - standalone jar file that can be executed as java -jar my-boot-artifact.jar and will be able to process http requests. Application is intentionally made simple, there's no big architecture inside it - you can see database code inside Controller method, which you'd normally not use for real world projects.

If you're interested in JUnit testing your Spring MVC controllers, feel free to visit Github repo containing very simple example of Spring MVC controller and JUnit test class testing it's endpoints. Project is implemented using Spring Boot framework.