A Java geek

This is the 10th post in the Exercises in Programming Style focus series. In last week’s post, we solved the now familiar top-25-word-frequencies-in-a-text-file problem by using Event-Driven Programming. When the number of observer-subject pairs grows, an alternative is to migrate to the Event Bus. The Observer pattern is a messaging pattern: an Observer subscribes to a Subject. When the later emits an event, the former is notified.

This is the 9th post in the Exercises in Programming Style focus series. In the post from two weeks ago, we solved the problem using Object-Oriented Programming: we modeled the problem space using objects. For an object to communicate with another one, a dispatch() method was made available. Remember before the web was ubiquitous? Graphical user interfaces were already a thing.

This is the 8th post in the Exercises in Programming Style focus series. Last week’s post was dedicated to OOP. Despite popular belief, the exercise was solved using neither accessors i.e. getters and setters, nor shared mutable state. The solution’s implementation was based on traditional OOP constructs offered by the Kotlin language: classes, inheritance and overriding. Other languages may offer different ways to do OOP.

This is the 7th post in the Exercises in Programming Style focus series. The post of this week is special, as it’s about Object-Oriented Programming. It’s quite popular nowadays to dismiss OOP. There’s a lot of confusion around it. Some people conflate OOP with accessors (i.e. getters and setters), or shared mutable state (or even both). This is not true, as we will see in this post.

This is the 6th post in the Exercises in Programming Style focus series. Last week saw us using higher-order functions by passing them as the parameter to another function, and dynamically calling them. The parameter passing is quite nice, but it’s not easy to follow the flow of the program. This week we are going to keep those functions, but make use of them in a different way, with function composition.

This is the 5th post in the Exercises in Programming Style focus series. This week, the chapter is named 'Kick forward'. The style’s constraint is not to call a function directly, but to pass it to the next function as a parameter, to be called later. I’m not sure whether the concept of higher-order functions has its roots in Functional Programming. However, the concept itself is easy to grasp.