A trie is an effective data structure that could be an excellent addition to your problem-solving toolbox. Let’s see which areas the trie usage is more applicable than a standard set or map implementation. And what other benefits you can get from using it. Read more

I am starting to learn and improve my functional programming skills. And I do not see the better way rather than practicing while coding small projects and reflecting on them. I implemented a small CLI version of “Five in a Row” game. Read more

This learning plan is only focused around JVM-based server-side development and related areas. Read more

How to hash a data with MD5, SHA-1 or SHA-256 algorithm in Java? Read more

I have a break for 5 minutes and want to find as more as possible ways to check that list is empty in Java. Just for fun, there is no sense in this article. Read more

Turn on HTML5 mode and get pretty URLs for any front-end single page application. Using Apache or nginx? Then this is for you. Read more

How to produce minimal Docker image which runs Java application built using Maven? Read more

Optional type was introduced to denote absence of value in API. Read more

Tuple is a pair of two or more elements. This kind of abstraction is rarely used in Java and there is real reason for it. Read more

One of the most elegant and frequently usable data structures in many functional programming languages is immutable linked list based on “cons” pairs. Read more