Scala example source code file (bug409.scala)

This example Scala source code file (bug409.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

array, case1, case1, case2, case3, case3, expr, expr, int, int, main, toto, unit

The Scala bug409.scala source code

abstract class Expr;
case class Case1(x: Int) extends Expr;
case class Case2(x: Int) extends Expr;
case class Case3(x: Int) extends Expr;

class Toto extends Expr with Case1(12);

object Main {
  def f(x: Expr): Int = x match {
    case Case1(x) => x
    case Case2(x) => x
    case Case3(x) => x
  }

  def main(args: Array[String]): Unit = {
    Console.println(f(new Toto));
  }
}