I was also reminded of Java when it delved into "you don't even know you have a file, it's just a stream". The stream abstraction of course predates Java. But J

I was also reminded of Java when it delved into "you don't even know you have a file, it's just a stream". The stream abstraction of course predates Java. But Java is where (IMO) developers really started embracing programming to these kinds of abstract interfaces en masse.