# All Packages

Package Summary
Package
Description
org.apache.commons.collections4
Interfaces and utilities shared across all packages.
org.apache.commons.collections4.bag
Implements the `Bag` and `SortedBag` interfaces.
org.apache.commons.collections4.bidimap
Implements the `BidiMap`, `OrderedBidiMap` and `SortedBidiMap` interfaces.
org.apache.commons.collections4.bloomfilter
Collects extensible Bloom filter classes and interfaces.
org.apache.commons.collections4.collection
Implementations of the `Collection` interface.
org.apache.commons.collections4.comparators
Implements the `Comparator` interface.
org.apache.commons.collections4.functors
Implements the `Closure`, `Predicate`, `Transformer` and `Factory` interfaces.
org.apache.commons.collections4.iterators
Implements the `Iterator` interface.
org.apache.commons.collections4.keyvalue
Implements collection and map related key/value classes.
org.apache.commons.collections4.list
Implements the `List` interface.
org.apache.commons.collections4.map
Implements the `Map`, `IterableMap`, `OrderedMap` and `SortedMap` interfaces.
org.apache.commons.collections4.multimap
Implements the `MultiValuedMap` interfaces.
org.apache.commons.collections4.multiset
Implements the `MultiSet` interface.
org.apache.commons.collections4.properties
Extends and customizes the behavior of `Properties`.
org.apache.commons.collections4.queue
Implements the `Queue` interface.
org.apache.commons.collections4.sequence
Compares two sequences of objects.
org.apache.commons.collections4.set
Implements the `Set`, `SortedSet` and `NavigableSet` interfaces.
org.apache.commons.collections4.splitmap
Implements the "split map" concept.
org.apache.commons.collections4.trie
Implements the `Trie` interface.
org.apache.commons.collections4.trie.analyzer
Implements `KeyAnalyzer`.