小编Piy*_*mar的帖子

我试图运行以下类，使其终止而不执行CompletableFuture。

public class ThenApplyExample {

public static void main(String[] args) throws Exception {
    //ExecutorService es = Executors.newCachedThreadPool();
    CompletableFuture<Student> studentCompletableFuture = CompletableFuture.supplyAsync(() -> {

        try {

            TimeUnit.SECONDS.sleep(2);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return 3;
    })// If I put executorservice created n commented above, programme work as expected.
            .thenApply(i -> {

                for (int j = 0; j <= i; j++) {
                    System.out.println("Inside first then apply");
                }
                try {
                    Thread.sleep(2000);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                System.out.println("First then apply is …