gistfile1.scala

scala> val m = Map("a" -> 1, "b" -> 2)
m: scala.collection.immutable.Map[String,Int] = Map(a -> 1, b -> 2)

type StringIntMap = scala.collection.immutable.Map[String, Int]
val m: StringIntMap = Map("a" -> 1)

val m: Map[String, Int] = Map[String, Int]("a" -> 1)
val m: Map[String, Int] = Map("a" -> 1)
val m = Map[String, Int]("a" -> 1)
val m = Map("a" -> 1)

object O { def apply(s: String) = s }
O("hi")

class C { def apply(s: String) = s }
val c = new C
c("hi")

def f(xs: String*) { /*xs: Seq[String] */ }
f()
f("a")
f("a", "b")

("a", 1) == new Tuple2("a", 1)
"a" -> 1 == new Tuple2("a", 1)

class MyInt(x: Int) {
  def plus(y: Int) = new MyInt(x + y)
  def +(y: Int) = plus(y)
}
new MyInt(1).plus(2)
new MyInt(1) + 2

"a".->(1) == "a" -> 1

val m = Map("a" -> 1, "b" -> 2)
val m: scala.collection.immutable.Map[String, Int] = 
  scala.collection.immutable.Map.apply[String, Int](
    new scala.Tuple2[String, Int]("a", 1),
    new scala.Tuple2[String, Int]("b", 2))

val g = Graph("a" --> "b", "b" --> "c")
val g = Graph("a" -- 1 --> "b", "b" -- 2 --> "c")
val g = Graph("a" -- 1 --> "b", "b" --> "c")

def readFirstLineFromFile(path: String): String = 
  using(new BufferedReader(new FileReader(path)))(_.readLine())