获取异步任务完成时的时间戳

Question

如果我有以下ExecutorService来执行任务，我怎样才能让它打印完成任务的时间？我应该在future.get（）之后添加getCurrentTime（）吗？

Future future = executorService.submit(new Callable(){
    public Object call() throws Exception {
        System.out.println("Asynchronous Callable");
        return "I finished";
    }
});

System.out.println("Status:" + future.get());