Can you list the existing levels of nested hierarchy of collections in the used programming language?

In Java, collections are organized into a hierarchy of interfaces and classes. The main levels of the collection hierarchy:

1. Collection — the base interface for all collections except Map.

   • List — an ordered list of elements, allowing duplicates (e.g., ArrayList, LinkedList).
   • Set — a collection of unique elements (e.g., HashSet, TreeSet).
   • Queue — a queue where elements are processed in a specific order (e.g., LinkedList, PriorityQueue).

2. Map — a key-value mapping, not inherited from Collection (e.g., HashMap, TreeMap).

Hierarchy example:

Iterable
 └─ Collection
      ├─ List
      ├─ Set
      └─ Queue

Map (separate hierarchy)

Each level adds its own methods and behavioral features of collections.