Effective Scala, part 7 - entry point of a project
Posted on in Effective Scala series
While a scala worksheet are evaluated from top to bottom, a scala project needs an entry point.
Only two requirements:
- It needs to be a top-level method or an object-level method, but not a class-level method
-
It needs to be annotated with
@main
Otherwise
- It can be named anything.
- It can be put in an arbitrary source file.
A source file in a project cannot contain top-level statements (e.g., println
), only top-level definitions (def
, val
, var
, trait
, object
, class
definitions)
.
Written by Jayesh Bhoot