Default method implementations in interfaces?

[Adam D. Ruppe via Digitalmars-d-learn]

On Friday, 23 October 2015 at 14:58:43 UTC, pineapple wrote:
> Is it possible to have default method implementations in 
> interfaces à la Java in D? Or some equivalent that allows 
> multiple inheritance without a bunch of identical copypasted 
> method bodies?

Use a mixin template together with your interface. Here's an 
example from my book:

http://arsdnet.net/dcode/book/chapter_06/09/multiple_inheritance.d

https://www.packtpub.com/application-development/d-cookbook

Notice that there's default implementations for each interface, 
you mix them in to get it all and can override individual names 
in the class too.