Mastering CachedThreadPool in Java Executors Service - [ Advanced Java Multithreading Tutorial ]

Published: 02 June 2023
on channel: Jstobigdata - DS, ML & More

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CachedThreadPool is a class in the java.util.concurrent package that implements the ExecutorService interface. It is a thread pool that creates new threads as needed, and reuses previously created threads when they are available. If a thread is idle for a certain period of time (by default, 60 seconds), it is terminated and removed from the pool. If all threads in the pool are busy and a new task is submitted, a new thread is created to handle the task. Cached Thread Pool.

Here are some key characteristics of CachedThreadPool:

It creates new threads as needed, and reuses previously created threads when they are available.

If a thread is idle for a certain period of time (by default, 60 seconds), it is terminated and removed from the pool.

If all threads in the pool are busy and a new task is submitted, a new thread is created to handle the task.

The size of the thread pool can grow to accommodate any number of tasks.

The threads in the pool are non-daemon threads, meaning that they prevent the JVM from exiting until all tasks have completed.

Tasks are executed in the order in which they are submitted.

CachedThreadPool is suitable for situations where you need to execute a large number of short-lived tasks, and where the number of tasks and their execution time are unpredictable. It is particularly useful for tasks that are CPU-bound, such as mathematical computations or image processing.

This tutorial is created by Bikram Kundu

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