Level 156 Level 158
Level 157

[No Typing] Collections: WeakHashMap Class


15 words 0 ignored

Ready to learn       Ready to review

Ignore words

Check the boxes below to ignore/unignore words, then click save at the bottom. Ignored words will never appear in any learning session.

All None

Ignore?
WeakHashMap()
This constructor constructs a new, empty WeakHashMap with the default initial capacity (16) and the default load factor (0.75).
WeakHashMap(int initialCapacity)
This constructor constructs a new, empty WeakHashMap with the given initial capacity and the default load factor, which is 0.75.
WeakHashMap(Map t)
This constructor constructs a new WeakHashMap with the same mappings as the specified Map.
void clear()
Removes all mappings from this map.
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 entrySet()
Returns a collection view of the mappings contained in this map
Object get(Object key)
Returns the value to which the specified key is mapped in this weak hash map, or null if the map contains no mapping for this key.
boolean isEmpty()
Returns true if this map contains no key-value mappings.
Set keySet()
Returns a set view of the keys contained in this map.
Object put(Object key, Object value)
Associates the specified value with the specified key in this map.
void putAll(Map m)
Copies all of the mappings from the specified map to this map These mappings will replace any mappings that this map had for any of the keys currently in the specified map.
Object remove(Object key)
Removes the mapping for this key from this map if present.
int size()
Returns the number of key-value mappings in this map.
Collection values()
Returns a collection view of the values contained in this map.