Scala example of lightweight data modelling - based on https://gist.github.com/amontalenti/8114383

scala_maps_and_lists.scala

object Main extends App {

	val some_items = List(1, 2, 3, 4)
	for (item <- some_items)
		println(item)
	
	val some_mapping = Map("ST"->"started", "IP"->"in progress", "DN"->"done")
	for ((key, value) <- some_mapping)
		println(key + "=>" + value) 
}

// See it here: http://ideone.com/V9PEEp

// Idiomatic Scala will not use "for" in this case.
// Alternatives:
//   some_items.map( println _ )
//   some_mapping.map( println _ )
// Other:
//   some_mapping.foreach { case(key, value) => println(key + "=>" + value) }
//   some_mapping.foreach {item => println(item._1 + "=>" + item._2)}
//   some_mapping.keys.foreach( key => println( key + "=>" + some_mapping(key) ))

Python: https://gist.github.com/amontalenti/8114383
Java: https://gist.github.com/amontalenti/8114359
C++11: https://gist.github.com/csoma/8115693

Clojure: https://gist.github.com/jpfuentes2/8117271