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What is Future?

Pragya Keshap answered on February 22, 2023 Popularity 10/10 Helpfulness 1/10

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What is Future?

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Executors class provide useful methods to execute Callable in a thread pool.

Since callable tasks run in parallel, we have to wait for the returned Object.

Callable tasks return java.util.concurrent.Future object.

Using Future we can find out the status of the Callable task and get the returned Object.

It provides get() method that can wait for the Callable to finish and then return the result.

So, Future is basically a placeholder for the object which is going to be

returned by the callable task at any time in future. 


Popularity 10/10 Helpfulness 1/10 Language java
Source: Grepper
Tags: java
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Contributed on Feb 22 2023
Pragya Keshap
0 Answers  Avg Quality 2/10


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