Uses the inherited getActors to get all the adjacent neighboring Actors.

processActors processes each of the neighboring ant farm actors. This method should be very short. It needs a loop to traverse (loop through) the actors ArrayList. An enhanced for loop works well for this. Each actor in actors needs to call its process method. The parameter for each call will be this, the reference to the worker ant executing the processActors method.

An Actor could be a QueenAnt, a Cake, a Cookie, or a WorkerAnt. Without the Processable interface, processActors would need to determine the type of actor and then downcast the actor reference before making the call to process. But, since each of these classes implements Processable, processActors only needs to cast the actor to Processable before the call. This polymorphic processing is allowed because Processable contains the process abstract method. The Java Run Time Environment (JRE) determines the actual type of object at runtime and calls the appropriate process method.

Complete the processActors method as discussed in the preceding paragraphs.