A few days ago when I posted the information about creating a course Becoming a software developer amongst many positive comments I had received at least a few question why would I do something like this for free. In the video below (English subtitles are available) I do present my answer. And I would also like to write a few additional remarks about it.

Tworzenie aplikacji na najświeższą platformę Windows (Universal Windows Platform) nie powinno sprawiać dużych problemów nawet początkującym osobom w tym temacie. Warto jednak już od pierwszych kroków wyposażyć się w ciekawy zbiór bibliotek od Microsoftu, który uprzyjemni pracę w UWP. Zróżnicowany zestaw pomocnych elementów znacznie usprawni programowanie na platformie Windows.

Programowanie współbieżne – jeden z najbardziej zaawansowanych tematów programistycznych. Z jednej strony programowanie równoległe jest już standardem, z którym mają styczność (może w pewnym stopniu nieświadomie) nawet początkujący programiści. Z drugiej strony nadal tylko niewielu programistów potrafi pisać poprawny oraz efektywny kod współbieżny.

Reading time ~4 minutes This post is an analysis of a very interesting optimization proposed by Nicholas Frechette in the comments under the previous post. He proposed to use one of the oldest tricks in performance cookbook - divide and conquer. Well, it did not turn out as I expected.Saga Before I go further here are some link to the previous posts on the problem of calculating similarities and then optimizing. This thread grew to a few post. Here are all of them:How I calculate similariti...

It’s been quite a while since I posted the latest update of the Warden project designed for monitoring the resources in general. After a lot of back-end coding and refactoring, the time has come to finally focus on the new web interface implementation. And this is where the things start to become interesting (I promise).

Very often WCF is translated to ABC which corresponds to basic WCF concepts such as: Address, Binding, Contract.

Reading time ~6 minutes Last time I’ve shown how I’ve gone from 34 hours to 11. This time we go faster. To go faster I have to do less. The current implementation of Similarity iterates over one vector and checks if that ingredient exists in the second one. Since those vectors are sparse the chance of a miss is big. This means that I am losing computational power on iterating and calling TryGetValue. How to iterate only over the mutually owned ones and do it fast? Saga Before I go furth...

The first problem raised on the exam from WCF technology is Creating a WCF Service. Here are the subtasks for the problem: Create contracts (service, data, message callback, and fault);Implement message inspectors;Implement asynchronous operations in the service; First let's start from question what WCF is?

Necessity is the mother of invention – that’s basically why I did create a new open source project called Lockbox. Its main purpose is to provide a centralized and secured storage for the application settings that can be easily fetched via HTTP request. Sounds interesting? Then let me guide you through the most important concepts of the Lockbox.

There are times that you need to call native (C/C++) code from .NET environment. To do so, you have several options: use C++/CLI, use P/Invoke mechanism, use some sort of inter-process communication like pipes, memory mapped files etc persuade yourself that it's gonna be easy to port this cool C/C++ library to C#. Shoot yourself in the head when trying to do it. We will discuss option 2.