## Hierarchy For Package org.apache.lucene.util.collections

Package Hierarchies:
  All Packages

## Class Hierarchy

- java.lang.Object
  - java.util.AbstractMap<K,V> (implements java.util.Map<K,V>)
    - java.util.HashMap<K,V> (implements java.lang.Cloneable, java.util.Map<K,V>, java.io.Serializable)
      - java.util.LinkedHashMap<K,V> (implements java.util.Map<K,V>)
        - org.apache.lucene.util.collections.LRUHashMap<K,V>
  - org.apache.lucene.util.collections.ArrayHashMap<K,V> (implements java.lang.Iterable<T>)
  - org.apache.lucene.util.collections.FloatToObjectMap<T> (implements java.lang.Iterable<T>)
  - org.apache.lucene.util.collections.IntArray
  - org.apache.lucene.util.collections.IntHashSet
  - org.apache.lucene.util.collections.IntToDoubleMap
  - org.apache.lucene.util.collections.IntToIntMap
  - org.apache.lucene.util.collections.IntToObjectMap<T> (implements java.lang.Iterable<T>)
  - org.apache.lucene.util.collections.ObjectToFloatMap<K>
  - org.apache.lucene.util.collections.ObjectToIntMap<K>

## Interface Hierarchy

- org.apache.lucene.util.collections.DoubleIterator
- org.apache.lucene.util.collections.FloatIterator
- org.apache.lucene.util.collections.IntIterator