How to Configure a Custom Thread Pool in Java? — IT Interview Guide

Managing threads in a Java application efficiently is crucial for achieving optimal performance and resource utilization. One of the most effective ways to handle threads is by using a custom thread pool to manage the lifecycle and execution of threads.

In this guide, we will walk through the process of configuring a custom thread pool in Java using the ExecutorService framework. You will learn how to create thread pools with specific configurations to suit various use cases such as CPU-bound tasks, I/O-bound tasks, and more. The custom thread pool approach allows us to control the number of threads, set specific parameters, and optimize execution.

Why Use a Custom Thread Pool?

Thread pools are designed to manage multiple threads for tasks without manually creating and destroying threads. In a Java application, using a custom thread pool allows for:

• Better resource management: By reusing threads, you avoid the overhead of creating and destroying threads frequently.
• Increased performance: You can control the number of threads to balance between too many threads, which could lead to high context switching, and too few threads, which could cause underutilization.
• Task prioritization…