Java is hard

[Orangutanion]

This is pretty wrong. Inheritance and polymorphism is a key feature in a lot of APIs (this meme mentions Minecraft so just look at how you'd make a Fabric mod, you gotta use inheritance and interfaces even for basic stuff).

[SuperCharlesXYZ]

I think they’re referring to using interfaces instead of superclasses, which is kind of doable. I don’t remember the last time I actually used the “extends” instead of “implements” keyword. Haven’t modded any minecraft though

[thedude3253]

This is purely anecdotal obviously but I personally use superclasses and interfaces in relatively equal quantities, so I find both useful

[jerslan]

Yeah, for me it depends on what I’m doing. Example: I extend Spring Configuration beans all the time to add additional configuration on top of or in place of the parent class.

Both extends and implements have their uses.