• Arrays are constructed simply using Array(element1, element2, ...)
• Arrays in Scala map to Java primitive Arrays (e.g. Java’s int[] is Scala’s Array[Int], Java’s String[] is Array[String] in Scala)
• Arrays are mutable (can’t change it’s size once created, but can modify it’s elements)
• Since they are using Java’s arrays, to print nicely an Array’s content, use .mkString(",")

• Array elements can be of any type, but the Array’s final type will be the lowest common denominator

  class Foo(val value1:Int)
  class Bar(value1:Int, val value2:Int) extends Foo(value1)
  val list:Array[Foo] = Array(new Foo(1), new Bar(2,3))
  

See Also opens in new page

• Array's scala docs