| 28 |
|
* subrange traversals in either direction using <tt>navigableSubMap</tt>. |
| 29 |
|
* Methods <tt>navigableSubMap</tt>, <tt>navigableHeadMap</tt>, and |
| 30 |
|
* <tt>navigableTailMap</tt> differ from the similarly named |
| 31 |
< |
* <tt>SortedMap</tt> methods only in that the returned maps |
| 32 |
< |
* are guaranteed to obey the <tt>NavigableMap</tt> interface. |
| 31 |
> |
* <tt>SortedMap</tt> methods only in their declared return types. |
| 32 |
> |
* Submaps of any <tt>NavigableMap</tt> must implement the |
| 33 |
> |
* <tt>NavigableMap</tt> interface. |
| 34 |
|
* |
| 35 |
|
* <p>This interface additionally defines methods <tt>firstEntry</tt>, |
| 36 |
|
* <tt>pollFirstEntry</tt>, <tt>lastEntry</tt>, and |
| 216 |
|
* the iteration are undefined. The set supports element removal, |
| 217 |
|
* which removes the corresponding mapping from the map, via the |
| 218 |
|
* <tt>Iterator.remove</tt>, <tt>Set.remove</tt>, |
| 219 |
< |
* <tt>removeAll</tt> <tt>retainAll</tt>, and <tt>clear</tt> |
| 220 |
< |
* operations. It does not support the add or <tt>addAll</tt> |
| 219 |
> |
* <tt>removeAll</tt>, <tt>retainAll</tt>, and <tt>clear</tt> |
| 220 |
> |
* operations. It does not support the <tt>add</tt> or <tt>addAll</tt> |
| 221 |
|
* operations. |
| 222 |
|
* |
| 223 |
|
* @return a set view of the keys contained in this map, sorted in |
