Asynchronous programming provides a non-blocking, event-driven

programming model.

To implement asynchrony in Java, you would need to use 'Future' or

'FutureTask', available in the java.util.concurrent package. Although the

former is an interface, the latter is an implementation of the Future

interface. In essence, in using 'Future' in your code, your asynchronous task

will be executed immediately with the promise of the result being made

available to the calling thread in the future.

The following code snippet shows an interface with two methods. One

illustrates a synchronous method and the other an asynchronous method