The previous two posts discussed Arithmetic Trainer from zero to an initial prototype and implementing multiple configurable training activities. However, all questions are generated on the interval 2 to 99. This post revisits the Arithmetic Trainer project and discusses question generation on arbitrary intervals. For example, training on the interval
A previous post introduces the Arithmetic Trainer project and showcases its development from zero to an initial prototype. This post revisits the project and extends it with additional training activities. Arithmetic Trainer currently offers a single training activity: Practice, which lets the user solve problems at their own pace, as
This post showcases the development of Arithmetic Trainer from zero to a polished initial version. Arithmetic Trainer is a simple console-based app for practising basic arithmetic. Here is an example of a typical practice session: Starting practice on Multiplication in range [2, 99]. Press q to stop. 23 * 3 = ? 69
One challenge with SSH is that the default behaviour of ssh-keygen becomes inadequate when managing more than one key. Creating the first SSH key pair is easy. Running ssh-keygen creates two files - id_ed25519 and id_ed25519.pub - in the ~/.ssh folder. The problems begin when creating additional
Another post outlines how to package a console project into a .NET CLI tool, using an example project called Guider. This tool can be invoked from the terminal as guidgen to generate a GUID and copy it to the clipboard for convenient access. This post extends Guider into a proper
Calendar Explorer - an app for viewing different time periods - such as days, weeks, quarters, and times of day - and navigating between them using intuitive swipe gestures and a time scale picker. In other words, it imitates the functionality of a typical calendar app. This post details the
Developing an application and running it from an IDE (Integrated Development Environment) is one thing; distributing it to users is a whole other level of complexity. This post approaches this complexity by exploring one specific case, divided into manageable steps. The starting point is a "Hello World"-like
This is an overview of tools for mobile iOS development. It comes from the perspective of a novice who is just getting started. iOS The two dominant operating systems on mobile devices are iOS and Android. iOS is developed by Apple and is specifically designed for its devices, such as
This post showcases the use of the TimeProvider abstraction in C#, focusing on its two implementations: TimeProvider.System, a replacement for DateTime.UtcNow, and FakeTimeProvider, which allows precise date and time control in unit tests. The project used as a practice ground is the Recurring Tasks Manager, first introduced in
This post showcases how to take a project from the Pluralsight EF Core 8 Fundamentals GitHub repo and make a few tweaks to it. This post serves as a reminder to oneself of completing the EF Core 8 Fundamentals course this week. Adapt The first step is to choose a
This post demonstrates a way of instantiating abstract class subclasses via reflection in C#. As an example, it uses the Calculator project, which implements arithmetic expressions, including their construction, evaluation, and conversion to and from JSON and XML. Here are a few related posts that cover various other aspects of
This post outlines the implementation of a recurring tasks manager using C# and AvaloniaUI. The core idea involves recurring tasks, which are meant to be completed repeatedly over an indefinite period. The intervals between consecutive completions are intended to be roughly consistent, though there is no urgency nor deadlines: a