Akka Actors in Scala

 Akka Actors in Scala

Akka is a popular actor-based framework for building concurrent and distributed systems in Scala. Actors are independent units of computation that communicate with each other through message passing. Here's an example of defining and using an actor:

java

import akka.actor.{Actor, ActorSystem, Props}

class GreetingActor extends Actor {

  def receive = {

    case name: String =>

      println(s"Hello, $name!")

  }

}

val system = ActorSystem("HelloSystem")

val greetingActor = system.actorOf(Props[GreetingActor], name = "greetingActor")

greetingActor ! "Bob"

In this example, a GreetingActor class is defined that extends the Actor trait and defines a receive method to handle incoming messages. An ActorSystem is created to manage the actors, and a greetingActor is created by calling actorOf with a Props object that specifies the GreetingActor class. Finally, a message is sent to the greetingActor by using the ! method.