demoCompletableFutureComplete.java

private static void demoCompletableFutureComplete() throws InterruptedException, ExecutionException {
        CompletableFuture<String> completableFuture = new CompletableFuture<>();
        //String value = completableFuture.get();
        //The above statement will cause program to run forever.
        // Because there is nothing for the completable future to do.

        completableFuture.complete("Completing the completable future with this default text");
        String value = completableFuture.get();
        System.out.println("Value After Complete: "+value);
    }