Data structures are one of the most fundamental concepts in computer science. Whether you're a beginner or a seasoned Java developer, a deep understanding of data structures is crucial for writing efficient and optimized code. In this article, we’ll explore the world of data structures in Java in detail, with real-world examples and practical use cases. What are Data Structures? A data structure is a way of organizing and storing data so that it can be accessed and modified efficiently. Think of it as a container that holds data in a particular layout. Choosing the right data structure can drastically improve the performance of your application. Data structures are broadly divided into two categories: Primitive Data Structures : int, char, float, boolean, etc. Non-Primitive Data Structures : Arrays, Lists, Stacks, Queues, Trees, Graphs, etc. Java provides a rich collection of built-in data structures through its Collection Framework , making it easier for develop...