Explain the Java Collections Framework and its basic interfaces.

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Accepted Answer

Java Collections Framework provides a set of classes and interfaces for storing and manipulating groups of objects.

Collection Interface: The root interface for the collection hierarchy. Example: List, Set, Queue.
List Interface: An ordered collection (also known as a sequence). Example: ArrayList, LinkedList.
Set Interface: A collection that does not allow duplicate elements. Example: HashSet, TreeSet.
Queue Interface: A collection designed for holding elements prior to processing. Example: LinkedList, PriorityQueue.
Map Interface: A collection that maps keys to values, not a true collection but part of the framework. Example: HashMap, TreeMap.

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