Difference between executor.submit and executor.execute

￡神魔★判官ぃ 2022-06-08 09:58 194阅读 0赞

**execute(Runnable)** does not return anything.

However, **submit(Callable)** returns a Future object which allows a way for you to programatically cancel the running thread later as well as get the T that is returned when the Callable completes. See JavaDoc of Future for more details

Future<?> future = executor.submit(longRunningJob);
    ...
    //long running job is taking too long
    future.cancel(true);

Moreover, if **future.get() == null** and doesn’t throw any exception then Runnable executed successfully

[https://stackoverflow.com/questions/18730290/difference-between-executor-submit-and-executor-execute-in-this-code-in-java][https_stackoverflow.com_questions_18730290_difference-between-executor-submit-and-executor-execute-in-this-code-in-java]

[https_stackoverflow.com_questions_18730290_difference-between-executor-submit-and-executor-execute-in-this-code-in-java]: https://stackoverflow.com/questions/18730290/difference-between-executor-submit-and-executor-execute-in-this-code-in-java

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