How can you extract the value from a Future object in your application?

In Java, the get() method is used to retrieve the value from a Future object. This method blocks the current thread until the computation is complete and returns the result. If the computation completes with an exception, get() throws an ExecutionException.

Example:

ExecutorService executor = Executors.newSingleThreadExecutor();
Future<Integer> future = executor.submit(() -> {
    // Some long-running operation
    Thread.sleep(1000);
    return 42;
});

try {
    Integer result = future.get(); // blocks until the result is ready
    System.out.println("Result: " + result);
} catch (InterruptedException | ExecutionException e) {
    e.printStackTrace();
}

executor.shutdown();

There is also a get(long timeout, TimeUnit unit) method, which allows setting a maximum wait time for the result.