Collections in java: The Java Collections Framework provides a set

The Java Collections Framework provides a set of interfaces (like List, Set, and Map) and a set of classes (ArrayList, HashSet, HashMap, etc.) that implement those interfaces. Java provides built-in collection classes like List, Set, Map and Queue, so developers don’t need to write their own data management algorithms. The Collection Framework improves productivity by making code more reusable, maintainable and faster to develop. The Java collections framework gives the programmer access to prepackaged data structures as well as to algorithms for manipulating them. A collection is an object that can hold references to other objects. Explore the Java Collection Framework with this in-depth guide. Learn about Lists, Sets, Maps, and Queues, their implementations, and how to optimize data handling in Java.