[Ch15] Creating an example with TimeUnit

  public static void main (String[] args) throws InterruptedException {

    ExecutorService executor = Executors.newSingleThreadExecutor();

    executor.execute(() -> sleepThenPrint());

//    Thread thread = new Thread(() -> sleepThenPrint());

//    thread.start();

//    Thread.sleep(1000L);

//    System.out.println(thread.getState());

    System.out.println("back in main");

//    executor.awaitTermination(1100L, TimeUnit.MILLISECONDS);

//    executor.shutdown();

    executor.shutdown();

  }

  private static void sleepThenPrint() {

    try {

      Thread.sleep(10_000L);

      Thread.sleep(120000);

    } catch (InterruptedException e) {

      e.printStackTrace();

    }

    System.out.println("top o’ the stack");

  }

}

class SleepWithTimeUnit {

  public static void main (String[] args) throws InterruptedException {

    ExecutorService executor = Executors.newSingleThreadExecutor();

    executor.execute(() -> sleepThenPrint());

    System.out.println("back in main");

    executor.shutdown();

  }

  private static void sleepThenPrint() {

    try {

      TimeUnit.MINUTES.sleep(2);

    } catch (InterruptedException e) {

      e.printStackTrace();

    }