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Showing content from https://docs.oracle.com/en/java/javase/24/docs/api/java.base/java/util/AbstractMap.html below:

AbstractMap (Java SE 24 & JDK 24)

Type Parameters:

K - the type of keys maintained by this map

V - the type of mapped values

All Implemented Interfaces:

Map<K,V>

Direct Known Subclasses:

ConcurrentHashMap, ConcurrentSkipListMap, EnumMap, HashMap, IdentityHashMap, TreeMap, WeakHashMap

• Nested Class Summary

  Nested Classes

  static class 

  An Entry maintaining a key and a value.

  static class 

  An unmodifiable Entry maintaining a key and a value.

  Nested classes/interfaces declared in interface java.util.MapMap.Entry<K,V>
• Constructor Summary

  Constructors

• Method Summary

  void

  Removes all of the mappings from this map (optional operation).

  Returns a shallow copy of this AbstractMap instance: the keys and values themselves are not cloned.

  boolean

  Returns true if this map contains a mapping for the specified key.

  boolean

  Returns true if this map maps one or more keys to the specified value.

  boolean

  Compares the specified object with this map for equality.

  Returns the value to which the specified key is mapped, or null if this map contains no mapping for the key.

  int

  Returns the hash code value for this map.

  boolean

  Returns true if this map contains no key-value mappings.

  Returns a

  Set

  view of the keys contained in this map.

  Associates the specified value with the specified key in this map (optional operation).

  void

  Copies all of the mappings from the specified map to this map (optional operation).

  Removes the mapping for a key from this map if it is present (optional operation).

  int

  Returns the number of key-value mappings in this map.

  Returns a string representation of this map.

  Returns a

  Collection

  view of the values contained in this map.

  Methods declared in interface java.util.Mapcompute, computeIfAbsent, computeIfPresent, entrySet, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll

• Constructor Details
  • AbstractMap
• Method Details
  • size
  • isEmpty
  • containsValue
  • containsKey
  • get
  • put
  • remove
  • putAll
  • clear
  • keySet
  • values
  • equals
  • hashCode
  • toString
  • clone

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