Java Collections are fundamental tools for managing groups of objects. Here's a quick overview of key interfaces and classes:
📋 Core Collection Interfaces
- List: Ordered collection (e.g.,
ArrayList,LinkedList) - Set: Unordered unique elements (e.g.,
HashSet,TreeSet) - Map: Key-value pairs (e.g.,
HashMap,TreeMap)
🧠 Common Operations
- Adding elements:
add() - Removing elements:
remove() - Iterating through collections:
iterator() - Sorting:
Collections.sort()for Lists/Arrays
🌐 Expand Your Knowledge
For deeper insights into Java's collection framework, check out our Java Collections Framework Guide. Want to learn how to implement custom data structures? Explore advanced topics here.