Java Collections Framework

The Java Collections Framework (JCF) is a comprehensive architecture for representing and manipulating collections. It provides highly optimized, reusable data structures that are essential for any Java developer.

This series explores the internal mechanics, algorithmic complexity, and design patterns behind the core implementations in java.util.

Table of Contents #

1. Interfaces: The foundation of the framework.

   • Collection Interface

2. Lists: Ordered collections with positional access.

   • ArrayList: Resizable array implementation.
   • LinkedList: Doubly-linked list implementation.

3. Maps: Key-value pairings.

   • HashMap: Hash table based implementation.

4. Sets: Collections with no duplicate elements.

   • HashSet: Backed by HashMap.
   • TreeSet: Navigable set backed by TreeMap.