Comparator comparator()
SortedMap subMap(Object fromKey, Object toKey) throws ClassCastException, NullPointerException, IllegalArgumentException
SortedMap headMap(Object toKey) throws ClassCastException, NullPointerException
SortedMap tailMap(Object fromKey) throws ClassCastException, NullPointerException
Object firstKey() throws NoSuchElementException
NoSuchElementException
Object lastKey() throws NoSuchElementException
NoSuchElementException