Scala import problems - error: not found: value -

i'm haskeller looking scala. i'm meeting frustration not code, imports/packages.

i have 2 files, test.scala , lists.scala.

// lists.scala package problems  object lists {   def last(list: list[any]): option[any] = list match {     case nil      => none     case x :: nil => some(x)     case _ :: xs  => last(xs)   } } 

and:

// test.scala import problems._  object test extends app {   println("starting tests...")   println(last(list(1,2,3,4,5))) } 

test.scala not compile. running scalac test.scala lists.scala yields:

test.scala:5: error: not found: value last   println(last(list(1,2,3,4,5)) 

yet rewriting last lists.last makes succeed. doesn't defeat point of import problems._ wildcard? notice math functions can written without preceeding math. doing import math._. why won't work files well?

real aim: want able make package, test functions println in file. what's best way that? can not away object {...} in test.scala , run scala, forgoing compilation process?

doesn't defeat point of import problems._ wildcard?

no, not. using wildcard you're bringing classes/objects in package scope, not contents.

i notice math functions can written without preceding math. doing import math._ why won't work files well?

it work, need proper import: import problems.lists._. otherwise can place functions package object.