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JDK 1.6
  java.util. Map View Source
Author(s)
Josh Bloch
Since
1.2
Version
1.56, 04/21/06
Serial
Hierarchy
 Map
Subinterfaces
Description
public interface Map
  An object that maps keys to values.
Methods
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public void clear ()
  Removes all of the mappings from this map (optional operation).
public boolean containsKey (Object key)
  Returns true if this map contains a mapping for the specified key.
public boolean containsValue (Object value)
  Returns true if this map maps one or more keys to the specified value.
public Set<Entry< K, V>> entrySet ()
  Returns a Set view of the mappings contained in this map.
public boolean equals (Object o)
  Compares the specified object with this map for equality.
public V get (Object key)
  Returns the value to which the specified key is mapped, or null if this map contains no mapping for the key.
public int hashCode ()
  Returns the hash code value for this map.
public boolean isEmpty ()
  Returns true if this map contains no key-value mappings.
public Set< K> keySet ()
  Returns a Set view of the keys contained in this map.
public V put ( K key, V value)
  Associates the specified value with the specified key in this map (optional operation).
public void putAll (Map<Object, Object> m)
  Copies all of the mappings from the specified map to this map (optional operation).
public V remove (Object key)
  Removes the mapping for a key from this map if it is present (optional operation).
public int size ()
  Returns the number of key-value mappings in this map.
public Collection< V> values ()
  Returns a Collection view of the values contained in this map.
Fields
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