Prezentarea de la Moldova Conference Days 2022, despre SDK-ul pentru iOS si Android implementat pentru compania Extole. Contine date despre instrumentele utilizate si procesul de dezvoltare.
I was reading on the internet that returning Java Optional may be slow and it is not recommend for high-performance applications. A bit of history In Java lack of a value can be represented as null or a more readable approach and less error-prone is to use Optional. Using Optional is the recommended way of […]
This is not a tutorial about Apache Kafka – just notes about setting up few brokers, producing and consuming from a topic. Achieving high-troughput is done by horizontally scale (increasing the number of brokers). Linkedin 14000 brokers -> 2 petabytes per week. Cluster – a Kafka cluster is a grouping multiple brokers (it doesn’t matter […]
Sometimes you will need to observe changes from a file that should match a regex. The above script can do this for you. I haven’t yet worked out how to do this without a temp file, but here is a script that demonstrates a functional grep-filtered less +F (which cleans up its temp file). I […]
Quick Sort is a sorting algorithm that uses the principle “divide-et-empera” for sorting, it’s one of most used sorting algorithms nowadays. In 90’s there was discovered a defect in C implementation of quicksort that caused sorting complexity to be higher than expected one. The difference between quick sort and merge sort is that quick sort […]
Symbol Table is a data structure used to store key-value stores, it is used by every compiler for almost every phase of compilation, starting with lexical analysis and continuing with optimization. They are collection of key-value pairs, where we can insert a value with a specific key, and search for a value given it’s key. […]
About two years ago, with a team of great people, we have implemented a platform that facilitates access to information about private companies. Country, where we living, have limited access to public data or public information is not easily accessible. Also in our country are about 250 000 of private companies and until 2014 public […]
About 1 year ago I have published on github.com, the MetalIO project. It’s a project for enthusiasts who are passionated about home automation – you can write this project on a simple ESP8266 micro controller, do all the configuration from your mobile phone without need to install any special application. Also a very important aspect […]
În ultimii 3 ani lucrez la un soft pentru automatizarea lucrului în casele de expediții, modificările sunt testate în practică, multe cerințe au apărut în urma utilizării zilnice a softului de către persoane care fac expediții. Posibilitățile care le oferă sunt: – crearea unei comenzi de transport – generarea actelor – contractelor cu clientul și […]
In rusă se numește “Делительная головка”, în traducere ar fi “Cap de indexare”. Un dispozitiv care permite rotirea cu precizie a unui corp în jurul axei sale. Una din utilizări este crearea roților dințate. Aceasta versiunea fost creată de tata.