How to call this objects methods in a map?

Question

Problem : I have to call Objects methods which stored in a map, for a given key how to do it ? Code :

trait Processor00 { def process(x:String): Unit } case class Processor20() extends Processor0 { override def process(x:String): Unit = println("Processor20 x :" + x) } case class Processor30() extends Processor0 { override def process(x:String): Unit = println("Processor30 x :" + x) } object UnitTest1 { def main( args : Array[String]):Unit ={ val s:String = "yes" val myFuncs: Map[String,(String) => Unit ]= Map( "string2" -> Processor20().process(s), //Eroor 1. type mismatch; found : Unit required: String ⇒ Unit "string3" -> Processor30().process(s) ) myFuncs.values.foreach(v => v());//how to call all Objects' i.e. process("Hi") here ??? } }

@jrook , sir created a new ticket.

BdEngineer
– BdEngineer

2018-10-26 08:38:24 +00:00
Commented Oct 26, 2018 at 8:38 — BdEngineer
– BdEngineer, Commented Oct 26, 2018 at 8:38

Andrii Stefaniv · Accepted Answer · 2018-10-26 09:57:14Z

Processor20().process(s) is called a function process and return Unit

but Processor20().process is a function that you could save in map

Try something like:

trait Processor00 { def process(x:String): Unit } case class Processor20() extends Processor00 { override def process(x:String): Unit = println("Processor20 x :" + x) } case class Processor30() extends Processor00 { override def process(x:String): Unit = println("Processor30 x :" + x) } object Main extends App { val s: String = "yes" val myFuncs: Map[String, String => Unit] = Map( "string2" -> Processor20().process, "string3" -> Processor30().process ) myFuncs.foreach { case (key, f) => f(s) } // or f(key) }

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