Learning Akka (Video 4)

This video tutorial covers the creation of a Hello World app using the actor model. It begins with an introduction to key concepts like concurrency and parallelism, then guides through setting up the app, defining messages and actors, and creating actor instances. The video concludes with a summary of what was learned and a preview of the next section, which will delve into actor components and lifecycle.

Which of the following is NOT a concept discussed in the introduction to concurrency?

• Synchronous operations

• Data encapsulation

• Parallelism

• Concurrency

What is the first step in creating a Hello World app using the actor model?

• Running the app

• Creating an actor system

• Defining the greet message

• Sending a message to the actor

How do you create an instance of an actor in Akka?

• Using the createInstance method

• Using the actorOf method

• Using the new keyword

• Using the actorInstance method

What method is used to send a message to an actor instance?

• send

• dispatch

• notify

• tell

What will be introduced in the next section after the Hello World app?

• Advanced message passing

• Actor components and lifecycle

• Error handling in actors

• Concurrency concepts