Uses of Interface
java.util.Map

Packages that use Map

Package	Description
java.lang	Contains core language classes.
java.util	Contains utility classes including the collections framework and date manipulation.

Uses of Map in java.lang

Methods in java.lang that return Map

Modifier and Type	Method and Description
static Map<Thread,StackTraceElement[]>	Thread.getAllStackTraces() Returns a map of stack traces for all live threads.

Uses of Map in java.util

Classes in java.util that implement Map

Modifier and Type	Class and Description
class	AbstractMap<K,V> This class provides a skeletal implementation of the Map interface, to minimize the effort required to implement this interface.
class	HashMap<K,V> Hash table based implementation of the Map interface.
class	Hashtable<K,V> This class implements a hash table, which maps keys to values.
class	WeakHashMap<K,V> Hash table based implementation of the Map interface, with weak keys.

Methods in java.util with parameters of type Map

Modifier and Type	Method and Description
void	Map.putAll(Map<? extends K,? extends V> m) Copies all of the mappings from the specified map to this map (optional operation).
void	WeakHashMap.putAll(Map<? extends K,? extends V> m) Copies all of the mappings from the specified map to this map.
void	HashMap.putAll(Map<? extends K,? extends V> m) Copies all of the mappings from the specified map to this map.
void	Hashtable.putAll(Map<? extends K,? extends V> t) Copies all of the mappings from the specified map to this hashtable.
void	AbstractMap.putAll(Map<? extends K,? extends V> m) Copies all of the mappings from the specified map to this map (optional operation).

Constructors in java.util with parameters of type Map

Constructor and Description
HashMap(Map<? extends K,? extends V> m) Constructs a new HashMap with the same mappings as the specified Map.
Hashtable(Map<? extends K,? extends V> t) Constructs a new hashtable with the same mappings as the given Map.
WeakHashMap(Map<? extends K,? extends V> m) Constructs a new WeakHashMap with the same mappings as the specified map.