Overview of the Java Collections Framework
The Java Collections Framework provides a set of interfaces and classes for storing and manipulating groups of objects. Key interfaces include:
Collection: The root interface for all collections. It defines basic operations for groups of objects.Set: A collection that cannot contain duplicate elements (models a mathematical set).List: An ordered collection (sequence) that allows duplicate elements and provides index-based access.Queue: A collection designed for holding elements prior to processing, offering specific insertion and extraction operations.Map: An object that maps unique keys to values. Each key can map to at most one value.