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Early_To_Risa@sh.itjust.works

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Anon tries programming in Java (lemmy.world)

submitted 1 week ago by LiamTheBox@lemmy.world to c/greentext@sh.itjust.works

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[–] pivot_root@lemmy.world 1 points 1 week ago* (last edited 1 week ago) (6 children)

I strongly prefer how interfaces are handled

It's better than Java, but they still chose to walk headfirst into the same trap that bites Java developers in the ass: associating interface implementations with the struct/class rather than the interface itself.

When you have two interfaces that each require you to implement a function with the same name but a different signature, you're in for a bad time featuring an abomination of wrapper types.

Edit: Clarity.

[–] Willem@kutsuya.dev 7 points 1 week ago (3 children)

On that last note, can't you use the explicit interface implementation in C#?

e.g.

public class SampleClass : IControl, ISurface
{
    void IControl.Paint()
    {
        System.Console.WriteLine("IControl.Paint");
    }
    void ISurface.Paint()
    {
        System.Console.WriteLine("ISurface.Paint");
    }
}

[–] pivot_root@lemmy.world 1 points 1 week ago* (last edited 1 week ago) (2 children)

Edit: I misread your comment as "like in C#" and wrote this as an answer to the non-existent question of "can't you use explicit interfaces like in C#"

I haven't kept up with recent Java developments, but with Go, you're out of luck. Interface implementations are completely implicit. You don't even have an implements keyword.

Edit: For Java, a cursory search suggests that they haven't yet added explicit interfaces: https://stackoverflow.com/questions/19111090/does-java-support-explicit-interface-implementation-like-c

[–] Amir@lemmy.ml 2 points 1 week ago (1 children)

He mentioned C#, which does let you explicitly choose to implement same-name functions of two interfaces with different code

[–] pivot_root@lemmy.world 3 points 1 week ago* (last edited 1 week ago)

For some reason, my brain inserted a "like" before "in C#", and answered the question of "can't you use explicit interfaces like in C#."

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