R1D17 Nose Dive into OOP in C#

| programming | dotnet |

I worked through module two of the Object Oriented Progrmaming in C# course on edX.

One thing that is a bit confusing (and I am sure will come back to bite me in the ass later on) is how new classes are magically usable once they are created. i.e. unlike in python and java where you must import everything at the top of a file, once you add a class in Visual Studio is becomes immediately usable in order parts of the code without having to explicitely import it. This is handy, but also seems like it could create some issues in the long run in the sense that it is not immediately obvious which parts of the code are being used from one file to the next with these implicit imports.

It is not immediately clear to me, but I suspect that this is only true in the context of a namespace. It seems that C# allows you to “magically” use all members of a namespace without having to import them explicitly.

Abstract classes and abstract methods. You can create “sealed” classes which cannot be inherited. Interfaces are classes without implementation. I feel like a good analogy for this would be header files in C, C++ or Objective-C. An interface is really what an API refers to in a traditional sense (not like REST API). It is a “programming contract” that guarantees users of the implemented class that the functionality of that class will implement everything that is defined in the interface.

In the lab portion of the course we refactored our “school simulator” to have Students and Teachers inherit from a base class of Person.

Tomorrow I hope to wrap up the last module of the course which has to do with memory management and then move on to the last course of the series that deals with data structures and algorithms in C#.

 

 

Thank you for reading! Share your thoughts with me on bluesky, mastodon, or via email.

Check out some more stuff to read down below.

Most popular posts this month

Recent Favorite Blog Posts

This is a collection of the last 8 posts that I bookmarked.

Articles from blogs I follow around the net

MusicBrainz Picard identifies songs from *.mp3 files and automatically fixes metadata

In my first attempt to switch from streaming to move back to listening to *.mp3 files, one of the issues I encountered was organization: how to standardize the metadata of the songs? The solution I was familiar with at the time — manually editing each son…

via Manual do Usuário April 24, 2025

Google's control of the web could be coming to an end

It's been hard to avoid the US government's antitrust case against Meta lately, since CEO Mark Zuckerberg spent three days in front of the cameras in Congress, testifying about his company's alleged anti-competitive tactics. But another equall…

via The Torment Nexus April 24, 2025

$5 million in tokens stolen from ZKsync

An attacker compromised an admin account belonging to the ZKsync Ethereum layer-2 project, which is built by Matter Labs. By doing so, they were able to steal approximately $5 million worth of the ZK token, which the project said wer…

via Web3 is Going Just Great April 24, 2025

Generated by openring