void |
clear() |
Removes all of the mappings from this map (optional operation). |
boolean |
containsKey(Object key) |
Returns true if this map contains a mapping for the specified key. |
boolean |
containsValue(Object value) |
Returns true if this map maps one or more keys to the specified value. |
Set<Map.Entry<K,V>> |
entrySet() |
Returns a Set view of the mappings contained in this map. |
boolean |
equals(Object o) |
Compares the specified object with this map for equality. |
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. |
int |
hashCode() |
Returns the hash code value for this map. |
boolean |
isEmpty() |
Returns true if this map contains no key-value mappings. |
Set<K> |
keySet() |
Returns a Set view of the keys contained in this map. |
V |
put(K key, V value) |
Associates the specified value with the specified key in this map (optional operation). |
void |
putAll(Map<? extends K,? extends V> m) |
Copies all of the mappings from the specified map to this map (optional operation). |
V |
remove(Object key) |
Removes the mapping for a key from this map if it is present (optional operation). |
int |
size() |
Returns the number of key-value mappings in this map. |
Collection <V> |
values() |
Returns a Collection view of the values contained in this map. |