Using a future directly for a simple operation

As an introductory example, we will see how to use a future just for a simple operation: we will add two integers and use a future to run this operation asynchronously.

Getting ready

To step through this recipe, we will need to import the Hello-Akka project; all other prerequisites are the same as before.

How to do it...

For this recipe, we will need to perform the following steps:

1. Create a file, such as AddFuture.scala, in the com.packt.chapter4 package.
2. Add the following imports to the top of the file:

        import scala.concurrent.duration._ 
        import...