Object | firstKey() Gets the first key currently in this map. |
Object | lastKey() Gets the last key currently in this map. |
Object | nextKey(Object key) Gets the next key after the one specified. |
Obtains an OrderedMapIterator over the map. | |
Object | previousKey(Object key) Gets the previous key before the one specified. |
public Object firstKey()
- if this map is emptypublic Object lastKey()
- if this map is emptypublic Object nextKey(Object key)
public OrderedMapIterator orderedMapIterator()
OrderedMapIterator
over the map.
A ordered map iterator is an efficient way of iterating over maps
in both directions.
BidiMap map = new TreeBidiMap(); MapIterator it = map.mapIterator(); while (it.hasNext()) { Object key = it.next(); Object value = it.getValue(); it.setValue("newValue"); Object previousKey = it.previous(); }
public Object previousKey(Object key)