## Uses of Class
java.util.AbstractSet

- Packages that use AbstractSet
  Package | Description
  --- | ---
  java.util |
  java.util.concurrent | Utility classes commonly useful in concurrent programming.

- - ### Uses of AbstractSet in java.util

    Subclasses of AbstractSet in java.util
    Modifier and Type | Class and Description
    --- | ---
    `class` | `EnumSet<E extends Enum<E>>` A specialized `Set` implementation for use with enum types.
    `class` | `HashSet<E>` This class implements the `Set` interface, backed by a hash table (actually a `HashMap` instance).
    `class` | `LinkedHashSet<E>` Hash table and linked list implementation of the `Set` interface, with predictable iteration order.
    `class` | `TreeSet<E>` A `NavigableSet` implementation based on a `TreeMap`.

  - ### Uses of AbstractSet in java.util.concurrent

    Subclasses of AbstractSet in java.util.concurrent
    Modifier and Type | Class and Description
    --- | ---
    `class` | `ConcurrentSkipListSet<E>` A scalable concurrent `NavigableSet` implementation based on a `ConcurrentSkipListMap`.
    `class` | `CopyOnWriteArraySet<E>` A `Set` that uses an internal `CopyOnWriteArrayList` for all of its operations.

Copyright © 2025 API Design. All Rights Reserved.