Scala example source code file (App.scala)

This example Scala source code file (App.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

abstractbase, app, app, application, application, caller, concrete, concrete, unit, unit

The Scala App.scala source code

package foo
import base._

object App extends Application {
  class Concrete extends AbstractBase {
     override def doStuff(params:java.lang.String*): Unit = println("doStuff invoked")
  }

  val impl = new Concrete

  //succeeds
  impl.doStuff(null)

  val caller = new Caller
  
  // fails with AbstractMethodError
  caller.callDoStuff(impl)
}