Sealed Classes and Interfaces - Java Programming
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- Опубліковано 20 лип 2023
- In this video, we'll talk all about sealed classes and interfaces in Java. One of the main delimmas of an object oriented designer is how much extension should an API allow. Sealed class and interfaces offer a way to walk the balance between locking down your code vs opening it up wide to extension. Hope you like the video!
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Excellent tutorial, Will!! You are extremely knowledgeable! 😃
Thanks! 😃
Great explanation!
Great video, Will!! Hope you are doing great!! cheers!!
Thanks, Pablo, I'm doing well! Let me know if you think of other future video ideas and I'll try to make videos addressing them :)
@@willtollefson Well actually I'm learning JPA with DAO and my course teachers are the worst at explaining things, but I guess that's too long for a video.
Let me congratulate you again Will, your channel is growing at a 10% weekly which is amazing!!!! you are the best!!!
Ah the DAO pattern - that's a good one :) Agreed that's probably too much for one video, but I'll take a note to see if I can make some future videos about persistence interfaces and DAOs. I hope you're doing well!
That was a great video 😊
Glad you enjoyed it!
Thanks, very clear examples 👍🏻
You're welcome!
how do sealed classes work in modules, unnamed for example when using permits clause.
I actually haven't tried crossing modules much with the sealed classes concept. I think when you have a named module your permits classes need to be in the same module and when you have an unnamed module they have to be in the same package. My thought process there is that would allow the compiler to know at compile time how it can enforce the permits clause. Hope this helps!
@@willtollefson that's helps a lot, thanks.
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