1. Java Collections
2. Java Collections - Overview
3. Java Iterator
4. Java Iterable
5. Java Collection
6. Java Generic Collections
7. Java Collections
8. Java List
9. Java Set
10. Java SortedSet
11. Java NavigableSet
12. Java Map
13. Java SortedMap
14. Java NavigableMap
15. Java Properties
16. Java Queue
17. Java Deque
18. Java Stack
19. Java hashCode() and equals()
20. Java Sorting Collections
21. Java Comparable
22. Java Comparator
23. Java Collections and Streams

In order to understand and use the Java Collections API effectively it is useful to have an overview of the interfaces it contains. So, that is what I will provide here.

There are two "groups" of interfaces: Collection's and Map's.

Here is a graphical overview of the Collection interface hierarchy:

And here is a graphical overview of the Map interface hierarchy:

You can find links to explanations of most (if not all) of these interfaces and implementations in the sub-menu at the top right of this page. That top-menu exists on all pages in this trail.