New Methods in Java 9: Math.fma and Arrays.mismatch

There are two noteworthy new methods in Java 9: Arrays.mismatch and Math.fma. Arrays.mismatch This method takes two primitive arrays, and returns the index of the first differing values. This effectively computes the longest common prefix of the two arrays. This is really quite useful, mostly for text processing but also for Bioinformatics (protein sequencing and […]

Sorting Unsigned Integers Faster in Java

I discovered a curious resource for audio-visualising sort algorithms, which is exciting for two reasons. The first is that I finally feel like I understand Alexander Scriabin: he was not a composer. He discovered Tim Sort 80 years before Tim Peters and called it Black Mass. (If you aren’t familiar with the piece, fast-forward to […]

Concise Binary Object Representation

Concise Binary Object Representation (CBOR) defined by RFC 7049 is a binary, typed, self describing serialisation format. In contrast with JSON, it is binary and distinguishes between different sizes of primitive type properly. In contrast with Avro and Protobuf, it is self describing and can be used without a schema. It goes without saying for all binary […]