// Scala - map and filter
object Demo {
  val lst = List(1, 2, 3, 5, 7, 10, 13);
  val mymap = Map(1 -> "Tom", 2 -> "Max", 3 -> "John");
	def main(args: Array[String]) {
	  println(lst.map(x => x / 0.2));
	  println(lst.map(x => "hi" * x));
	  println(mymap.mapValues(x => "hi " + x));
	  println("hello".map(_.toUpper));
	  println(List(List(1,2,3), List(3,4,5)).flatten);
	  println(lst.flatMap(x => List(x, x+1)));
	  
	  println(lst.filter(x => x%2!=0))

	}
}