Scala example source code file (t3833.scala)

This example Scala source code file (t3833.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

a, a, anyref, array, array, atype, atype, f, i, int, int, main, t

The Scala t3833.scala source code

object Main {
  def mkArray[T <: A](atype: Int) :T#AType = {
    (atype match {
      case 1 =>
        new Array[Int](10)
        // Decompiled code: return (Object[])new int[10];
      case 2 =>
        new Array[Float](10)
    }).asInstanceOf[T#AType]
  }

  def main(args: Array[String]) {
    println(mkArray[I](1))
    //java.lang.ClassCastException: [I cannot be cast to [Ljava.lang.Object;
  }
}

trait A {
  type AType <: AnyRef
}
trait I extends A {
  type AType = Array[Int]
}
trait F extends A {
  type AType = Array[Float]
}