Futures are an interesting conecpt in concurrent and parallel programming. I’ve written about them several time, the last time in Advanced Futures With Play Framework. Streams are a concept which came with Java 8 to operate on a stream of objects, transfo... (more…)

I am sitting in my study, it’s dark and completely silent, I am in the creative flow, typing away the last lines of code for my new… (more…)

Compact, hands-free [sub]command line parsing library for Clojure. - cli-matic/toycalc.bb at master · l3nz/cli-matic... (more…)

Project Amber has brought a number of new features to Java in recent years. While each of these features are self-contained, they are also designed to work together. Specifically, records, sealed classes, and pattern matching work together to enable easie... (more…)

The challenge of solving valid Sudoku blocks Determine if a 9×9 Sudoku board is valid. Only the filled cells need to be validated according to the following rules: Each row must contain the digits 1-9 without repetition. Each column must contain the digit... (more…)