Scala example source code file (t153.scala)

This example Scala source code file (t153.scala) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Scala tags/keywords

app, app, int, int, none, none, some, test, test

The Scala t153.scala source code

object Test extends App {
	def powers(x: Int) = if ((x&(x-1))==0) Some(x) else None
	val res = (Stream.range(1, 500000) flatMap powers).reverse
	println(res take 42 force)
}