Last Updated: December 6, 2025
Imagine you have a massive collection of data that needs to be accessed quickly. Maybe it’s user details for a web application or inventory items for an e-commerce site. You want to retrieve, store, and update this information as efficiently as possible.
This is where a Hashtable comes into play. It’s an essential part of the Java Collections Framework, providing a way to map keys to values efficiently.
Let’s dive into the details of how Hashtable works, its features, and when to use it.