In the three examples shown in this chapter, we have used a lot of methods of the classes that forms the fork/join framework, but there are other interesting methods you have to know.
We have used the methods execute() and invoke() from the ForkJoinPool class to send tasks to the pool. We can use another method, named submit(). The main difference between them is that the execute() method sends the task to the ForkJoinPool and immediately returns a void value, the invoke() method sends the task to the ForkJoinPool and returns when the task has finished its execution, and the submit() method sends the task to the ForkJoinPool and immediately returns a Future object to control the status of the task and obtain its result.
In all the examples of this chapter, we have used classes based on the ForkJoinTask class, but you can use the ForkJoinPool tasks based on the Runnable and Callable interfaces. To do this, you can use the submit() method, which has versions...