Scala example source code file (t0209.scala)

This example Scala source code file (t0209.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, array, array, b, b, c, c, program

The Scala t0209.scala source code

abstract class A {
 def f(x : this.type) : B
}

class B extends A {
 override def f(x : this.type) : B = x
}

class C extends A {
 override def f(x : this.type) : B = null
}

object Program {
  def main(args : Array[String]) {
    (new B: A).f(new C)
  }
}