what is the advantage of using FutureTask over Callable?

前端未结

关注

 3  1496

野趣味 2020-12-25 13:15

There are two approaches to submitting and polling task for result

FutureTask futureTask = new FutureTask(callable);

3条回答

囚心锁ツ (楼主)

2020-12-25 14:03

Almost certainly none at all. A quick browse on GrepCode of the AbstractExecutorService shows each of these methods are simply helper methods that ultimately wrap the Callable/Runnable in a Future for you.

protected  RunnableFuture newTaskFor(Runnable runnable, T value) {
    return new FutureTask(runnable, value);
}

protected  RunnableFuture newTaskFor(Callable callable) {
    return new FutureTask(callable);
}

public Future submit(Runnable task) {
    // ...
    RunnableFuture