Last Updated: December 6, 2025
Queues are an essential data structure in programming, often used to manage tasks in a first-in, first-out (FIFO) manner. Imagine a line at a coffee shop where the first person to order is the first one served. That’s a queue in action.
In Java, the Queue Interface plays a critical role in the Collections Framework, allowing us to work with sequence-based data effectively.
In this chapter, we will dive deep into the Queue Interface, exploring its structure, key methods, and practical applications.