scala notes

https://www.safaribooksonline.com/library/view/scala-for-the/9780134510613/

packages => nesting can be all at one place, no need to have similar source directories

imports are flexible, can import specific classes, can hide a class, can alias, can import anywhere (lexical scoping)

Traits (like Java interfaces)

But much more powerful

Traits cannot have construction parameters, otherwise they are same as classes.

traits can be mixed in with objects, rather than class declaration

traits can invoke others in a priorlayer (consolelogger, timestamplogger, shortlogger)