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

The SingleThreadPool is a class in the java.util.concurrent package that implements the ExecutorService interface. It is a thread pool that contains a single worker thread. When a task is submitted to the pool, it is executed by the single thread. If another task is submitted while the thread is already running a task, the new task is queued and executed after the first task completes. Single Thread Pool.

Here are some key characteristics of SingleThreadPool:

It contains a single worker thread.

If a task is submitted to the pool and the worker thread is idle, the task is executed by the thread.

If another task is submitted while the worker thread is already running a task, the new task is queued and executed after the first task completes.

Once a thread has completed a task, it is returned to the pool and can be reused for another task.

If a thread encounters an exception while running a task, it is terminated and replaced with a new thread.

The size of the thread pool remains fixed throughout the lifetime of the pool.

SingleThreadPool is suitable for situations where a single thread is required to perform a set of tasks, and where the order of task execution is important. It is particularly useful for tasks that are I/O-bound, such as reading and writing to files or sockets, as it ensures that the tasks are executed in a sequential manner.

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This tutorial is created and presented by Bikram Kundu