Uses of Class
io.vavr.collection.TreeMap

Packages that use TreeMap

Package	Description
io.vavr.collection	Purely functional collections based on Traversable.

Uses of TreeMap in io.vavr.collection

Methods in io.vavr.collection that return TreeMap

Modifier and Type	Method	Description
private static <K,K2,V,V2> TreeMap<K2,V2>	TreeMap.bimap(@NonNull TreeMap<K,V> map, @NonNull TreeMap.EntryComparator<K2,V2> entryComparator, Function<? super K, ? extends K2> keyMapper, Function<? super V, ? extends V2> valueMapper)
<K2,V2> TreeMap<K2,V2>	TreeMap.bimap(@NonNull Comparator<? super K2> keyComparator, @NonNull Function<? super K, ? extends K2> keyMapper, Function<? super V, ? extends V2> valueMapper)
<K2,V2> TreeMap<K2,V2>	TreeMap.bimap(@NonNull Function<? super K, ? extends K2> keyMapper, @NonNull Function<? super V, ? extends V2> valueMapper)
private TreeMap<K,V>	TreeMap.createFromEntries(@NonNull Iterable<Tuple2<K,V>> tuples)
private static <K,V> TreeMap<K,V>	TreeMap.createFromMap(@NonNull TreeMap.EntryComparator<K,V> entryComparator, @NonNull Map<? extends K, ? extends V> map)
private static <K,V> TreeMap<K,V>	TreeMap.createFromMapEntries(@NonNull TreeMap.EntryComparator<K,V> entryComparator, @NonNull Map.Entry<? extends K, ? extends V> @NonNull ... entries)
private static <K,V> TreeMap<K,V>	TreeMap.createFromPairs(@NonNull TreeMap.EntryComparator<K,V> entryComparator, @NonNull Object @NonNull ... pairs)
private static <K,V> TreeMap<K,V>	TreeMap.createFromTuple(@NonNull TreeMap.EntryComparator<K,V> entryComparator, @NonNull Tuple2<? extends K, ? extends V> entry)
private static <K,V> TreeMap<K,V>	TreeMap.createFromTuples(@NonNull TreeMap.EntryComparator<K,V> entryComparator, @NonNull Tuple2<? extends K, ? extends V> @NonNull ... entries)
private static <K,V> TreeMap<K,V>	TreeMap.createTreeMap(@NonNull TreeMap.EntryComparator<K,V> entryComparator, @NonNull Iterable<? extends Tuple2<? extends K, ? extends V>> entries)
private static <K,K2,V,V2> TreeMap<K2,V2>	TreeMap.createTreeMap(@NonNull TreeMap.EntryComparator<K2,V2> entryComparator, @NonNull Iterable<Tuple2<K,V>> entries, Function<Tuple2<K,V>, Tuple2<K2,V2>> entryMapper)
TreeMap<K,V>	TreeMap.distinct()
TreeMap<K,V>	TreeMap.distinctBy(@NonNull Comparator<? super Tuple2<K,V>> comparator)
<U> TreeMap<K,V>	TreeMap.distinctBy(@NonNull Function<? super Tuple2<K,V>, ? extends U> keyExtractor)
TreeMap<K,V>	TreeMap.drop(int n)
TreeMap<K,V>	TreeMap.dropRight(int n)
TreeMap<K,V>	TreeMap.dropUntil(@NonNull Predicate<? super Tuple2<K,V>> predicate)
TreeMap<K,V>	TreeMap.dropWhile(@NonNull Predicate<? super Tuple2<K,V>> predicate)
static <K extends Comparable<? super K>, V> TreeMap<K,V>	TreeMap.empty()	Returns the empty TreeMap.
static <K,V> TreeMap<K,V>	TreeMap.empty(@NonNull Comparator<? super K> keyComparator)	Returns the empty TreeMap using the given key comparator.
private TreeMap<K,V>	TreeMap.emptyInstance()
static <K extends Comparable<? super K>, V> TreeMap<K,V>	TreeMap.fill(int n, @NonNull Supplier<? extends Tuple2<? extends K, ? extends V>> s)	Returns a TreeMap containing tuples returned by n calls to a given Supplier s.
static <K,V> TreeMap<K,V>	TreeMap.fill(@NonNull Comparator<? super K> keyComparator, int n, @NonNull Supplier<? extends Tuple2<? extends K, ? extends V>> s)	Returns a TreeMap containing tuples returned by n calls to a given Supplier s.
TreeMap<K,V>	TreeMap.filter(@NonNull BiPredicate<? super K, ? super V> predicate)
TreeMap<K,V>	TreeMap.filter(@NonNull Predicate<? super Tuple2<K,V>> predicate)
TreeMap<K,V>	TreeMap.filterKeys(@NonNull Predicate<? super K> predicate)
TreeMap<K,V>	TreeMap.filterValues(@NonNull Predicate<? super V> predicate)
private static <K,V,K2,V2> TreeMap<K2,V2>	TreeMap.flatMap(@NonNull TreeMap<K,V> map, @NonNull TreeMap.EntryComparator<K2,V2> entryComparator, BiFunction<? super K, ? super V, ? extends Iterable<Tuple2<K2,V2>>> mapper)
<K2,V2> TreeMap<K2,V2>	TreeMap.flatMap(@NonNull Comparator<? super K2> keyComparator, @NonNull BiFunction<? super K, ? super V, ? extends Iterable<Tuple2<K2,V2>>> mapper)
<K2,V2> TreeMap<K2,V2>	TreeMap.flatMap(@NonNull BiFunction<? super K, ? super V, ? extends Iterable<Tuple2<K2,V2>>> mapper)
TreeMap<K,V>	TreeMap.init()
private static <K,K2,V,V2> TreeMap<K2,V2>	TreeMap.map(@NonNull TreeMap<K,V> map, @NonNull TreeMap.EntryComparator<K2,V2> entryComparator, BiFunction<? super K, ? super V, Tuple2<K2,V2>> mapper)
<K2,V2> TreeMap<K2,V2>	TreeMap.map(@NonNull Comparator<? super K2> keyComparator, @NonNull BiFunction<? super K, ? super V, Tuple2<K2,V2>> mapper)
<K2,V2> TreeMap<K2,V2>	TreeMap.map(@NonNull BiFunction<? super K, ? super V, Tuple2<K2,V2>> mapper)
<K2> TreeMap<K2,V>	TreeMap.mapKeys(@NonNull Function<? super K, ? extends K2> keyMapper)
<K2> TreeMap<K2,V>	TreeMap.mapKeys(@NonNull Function<? super K, ? extends K2> keyMapper, @NonNull BiFunction<? super V, ? super V, ? extends V> valueMerge)
<W> TreeMap<K,W>	TreeMap.mapValues(@NonNull Function<? super V, ? extends W> valueMapper)
TreeMap<K,V>	TreeMap.merge(@NonNull Map<? extends K, ? extends V> that)
<U extends V> TreeMap<K,V>	TreeMap.merge(@NonNull Map<? extends K, U> that, @NonNull BiFunction<? super V, ? super U, ? extends V> collisionResolution)
static <K,V> TreeMap<K,V>	TreeMap.narrow(TreeMap<? extends K, ? extends V> treeMap)	Narrows a TreeMap<? extends K, ? extends V> to TreeMap<K, V> via a type-safe cast.
static <K extends Comparable<? super K>, V> TreeMap<K,V>	TreeMap.of(@NonNull Tuple2<? extends K, ? extends V> entry)	Returns a singleton TreeMap, i.e.
static <K,V> TreeMap<K,V>	TreeMap.of(@NonNull Comparator<? super K> keyComparator, @NonNull Tuple2<? extends K, ? extends V> entry)	Returns a singleton TreeMap, i.e.
static <K,V> TreeMap<K,V>	TreeMap.of(Comparator<? super K> keyComparator, K key, V value)	Returns a singleton TreeMap, i.e.
static <K,V> TreeMap<K,V>	TreeMap.of(Comparator<? super K> keyComparator, K k1, V v1, K k2, V v2)	Creates a TreeMap of the given list of key-value pairs.
static <K,V> TreeMap<K,V>	TreeMap.of(Comparator<? super K> keyComparator, K k1, V v1, K k2, V v2, K k3, V v3)	Creates a TreeMap of the given list of key-value pairs.
static <K,V> TreeMap<K,V>	TreeMap.of(Comparator<? super K> keyComparator, K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4)	Creates a TreeMap of the given list of key-value pairs.
static <K,V> TreeMap<K,V>	TreeMap.of(Comparator<? super K> keyComparator, K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5)	Creates a TreeMap of the given list of key-value pairs.
static <K,V> TreeMap<K,V>	TreeMap.of(Comparator<? super K> keyComparator, K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5, K k6, V v6)	Creates a TreeMap of the given list of key-value pairs.
static <K,V> TreeMap<K,V>	TreeMap.of(Comparator<? super K> keyComparator, K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5, K k6, V v6, K k7, V v7)	Creates a TreeMap of the given list of key-value pairs.
static <K,V> TreeMap<K,V>	TreeMap.of(Comparator<? super K> keyComparator, K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5, K k6, V v6, K k7, V v7, K k8, V v8)	Creates a TreeMap of the given list of key-value pairs.
static <K,V> TreeMap<K,V>	TreeMap.of(Comparator<? super K> keyComparator, K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5, K k6, V v6, K k7, V v7, K k8, V v8, K k9, V v9)	Creates a TreeMap of the given list of key-value pairs.
static <K,V> TreeMap<K,V>	TreeMap.of(Comparator<? super K> keyComparator, K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5, K k6, V v6, K k7, V v7, K k8, V v8, K k9, V v9, K k10, V v10)	Creates a TreeMap of the given list of key-value pairs.
static <K extends Comparable<? super K>, V> TreeMap<K,V>	TreeMap.of(K key, V value)	Returns a singleton TreeMap, i.e.
static <K extends Comparable<? super K>, V> TreeMap<K,V>	TreeMap.of(K k1, V v1, K k2, V v2)	Creates a TreeMap of the given list of key-value pairs.
static <K extends Comparable<? super K>, V> TreeMap<K,V>	TreeMap.of(K k1, V v1, K k2, V v2, K k3, V v3)	Creates a TreeMap of the given list of key-value pairs.
static <K extends Comparable<? super K>, V> TreeMap<K,V>	TreeMap.of(K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4)	Creates a TreeMap of the given list of key-value pairs.
static <K extends Comparable<? super K>, V> TreeMap<K,V>	TreeMap.of(K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5)	Creates a TreeMap of the given list of key-value pairs.
static <K extends Comparable<? super K>, V> TreeMap<K,V>	TreeMap.of(K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5, K k6, V v6)	Creates a TreeMap of the given list of key-value pairs.
static <K extends Comparable<? super K>, V> TreeMap<K,V>	TreeMap.of(K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5, K k6, V v6, K k7, V v7)	Creates a TreeMap of the given list of key-value pairs.
static <K extends Comparable<? super K>, V> TreeMap<K,V>	TreeMap.of(K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5, K k6, V v6, K k7, V v7, K k8, V v8)	Creates a TreeMap of the given list of key-value pairs.
static <K extends Comparable<? super K>, V> TreeMap<K,V>	TreeMap.of(K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5, K k6, V v6, K k7, V v7, K k8, V v8, K k9, V v9)	Creates a TreeMap of the given list of key-value pairs.
static <K extends Comparable<? super K>, V> TreeMap<K,V>	TreeMap.of(K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5, K k6, V v6, K k7, V v7, K k8, V v8, K k9, V v9, K k10, V v10)	Creates a TreeMap of the given list of key-value pairs.
static <K,V> TreeMap<K,V>	TreeMap.ofAll(@NonNull Comparator<? super K> keyComparator, @NonNull Map<? extends K, ? extends V> map)	Returns a TreeMap, from a source java.util.Map.
static <T,K,V> TreeMap<K,V>	TreeMap.ofAll(@NonNull Comparator<? super K> keyComparator, @NonNull Stream<? extends T> stream, @NonNull Function<? super T, Tuple2<? extends K, ? extends V>> entryMapper)	Returns a TreeMap, from entries mapped from stream.
static <K extends Comparable<? super K>, V> TreeMap<K,V>	TreeMap.ofAll(@NonNull Map<? extends K, ? extends V> map)	Returns a TreeMap, from a source java.util.Map.
static <T,K,V> TreeMap<K,V>	TreeMap.ofAll(Comparator<? super K> keyComparator, @NonNull Stream<? extends T> stream, @NonNull Function<? super T, ? extends K> keyMapper, @NonNull Function<? super T, ? extends V> valueMapper)	Returns a TreeMap, from entries mapped from stream.
static <T, K extends Comparable<? super K>, V> TreeMap<K,V>	TreeMap.ofAll(@NonNull Stream<? extends T> stream, @NonNull Function<? super T, ? extends K> keyMapper, @NonNull Function<? super T, ? extends V> valueMapper)	Returns a TreeMap, from entries mapped from stream.
static <T, K extends Comparable<? super K>, V> TreeMap<K,V>	TreeMap.ofAll(@NonNull Stream<? extends T> stream, @NonNull Function<? super T, Tuple2<? extends K, ? extends V>> entryMapper)	Returns a TreeMap, from entries mapped from stream.
static <K extends Comparable<? super K>, V> TreeMap<K,V>	TreeMap.ofEntries(@NonNull Tuple2<? extends K, ? extends V> @NonNull ... entries)	Creates a TreeMap of the given entries using the natural key comparator.
static <K extends Comparable<? super K>, V> TreeMap<K,V>	TreeMap.ofEntries(@NonNull Iterable<? extends Tuple2<? extends K, ? extends V>> entries)	Creates a TreeMap of the given entries.
static <K,V> TreeMap<K,V>	TreeMap.ofEntries(@NonNull Comparator<? super K> keyComparator, @NonNull Tuple2<? extends K, ? extends V> @NonNull ... entries)	Creates a TreeMap of the given entries using the given key comparator.
static <K,V> TreeMap<K,V>	TreeMap.ofEntries(@NonNull Comparator<? super K> keyComparator, @NonNull Iterable<? extends Tuple2<? extends K, ? extends V>> entries)	Creates a TreeMap of the given entries.
static <K,V> TreeMap<K,V>	TreeMap.ofEntries(@NonNull Comparator<? super K> keyComparator, @NonNull Map.Entry<? extends K, ? extends V> @NonNull ... entries)	Creates a TreeMap of the given entries using the given key comparator.
static <K extends Comparable<? super K>, V> TreeMap<K,V>	TreeMap.ofEntries(@NonNull Map.Entry<? extends K, ? extends V> @NonNull ... entries)	Creates a TreeMap of the given entries using the natural key comparator.
TreeMap<K,V>	TreeMap.orElse(@NonNull Iterable<? extends Tuple2<K,V>> other)	Returns this TreeMap if it is nonempty, otherwise TreeMap created from iterable, using existing comparator.
TreeMap<K,V>	TreeMap.orElse(@NonNull Supplier<? extends Iterable<? extends Tuple2<K,V>>> supplier)	Returns this TreeMap if it is nonempty, otherwise TreeMap created from result of evaluating supplier, using existing comparator.
TreeMap<K,V>	TreeMap.peek(@NonNull Consumer<? super Tuple2<K,V>> action)
TreeMap<K,V>	TreeMap.put(@NonNull Tuple2<? extends K, ? extends V> entry)
<U extends V> TreeMap<K,V>	TreeMap.put(@NonNull Tuple2<? extends K, U> entry, @NonNull BiFunction<? super V, ? super U, ? extends V> merge)
<U extends V> TreeMap<K,V>	TreeMap.put(K key, U value, @NonNull BiFunction<? super V, ? super U, ? extends V> merge)
TreeMap<K,V>	TreeMap.put(K key, V value)
TreeMap<K,V>	TreeMap.reject(@NonNull BiPredicate<? super K, ? super V> predicate)
TreeMap<K,V>	TreeMap.reject(@NonNull Predicate<? super Tuple2<K,V>> predicate)
TreeMap<K,V>	TreeMap.rejectKeys(@NonNull Predicate<? super K> predicate)
TreeMap<K,V>	TreeMap.rejectValues(@NonNull Predicate<? super V> predicate)
TreeMap<K,V>	TreeMap.remove(K key)
TreeMap<K,V>	TreeMap.removeAll(@NonNull Iterable<? extends K> keys)
TreeMap<K,V>	TreeMap.removeAll(@NonNull BiPredicate<? super K, ? super V> predicate)	Deprecated.
TreeMap<K,V>	TreeMap.removeKeys(@NonNull Predicate<? super K> predicate)	Deprecated.
TreeMap<K,V>	TreeMap.removeValues(@NonNull Predicate<? super V> predicate)	Deprecated.
TreeMap<K,V>	TreeMap.replace(@NonNull Tuple2<K,V> currentElement, @NonNull Tuple2<K,V> newElement)
TreeMap<K,V>	TreeMap.replace(K key, V oldValue, V newValue)
TreeMap<K,V>	TreeMap.replaceAll(@NonNull Tuple2<K,V> currentElement, Tuple2<K,V> newElement)
TreeMap<K,V>	TreeMap.replaceAll(@NonNull BiFunction<? super K, ? super V, ? extends V> function)
TreeMap<K,V>	TreeMap.replaceValue(K key, V value)
TreeMap<K,V>	TreeMap.retainAll(@NonNull Iterable<? extends Tuple2<K,V>> elements)
TreeMap<K,V>	TreeMap.scan(@NonNull Tuple2<K,V> zero, @NonNull BiFunction<? super Tuple2<K,V>, ? super Tuple2<K,V>, ? extends Tuple2<K,V>> operation)
static <K extends Comparable<? super K>, V> TreeMap<K,V>	TreeMap.tabulate(int n, @NonNull Function<? super Integer, ? extends Tuple2<? extends K, ? extends V>> f)	Returns a TreeMap containing n values of a given Function f over a range of integer values from 0 to n - 1.
static <K,V> TreeMap<K,V>	TreeMap.tabulate(Comparator<? super K> keyComparator, int n, @NonNull Function<? super Integer, ? extends Tuple2<? extends K, ? extends V>> f)	Returns a TreeMap containing n values of a given Function f over a range of integer values from 0 to n - 1.
TreeMap<K,V>	TreeMap.tail()
TreeMap<K,V>	TreeMap.take(int n)
TreeMap<K,V>	TreeMap.takeRight(int n)
TreeMap<K,V>	TreeMap.takeUntil(@NonNull Predicate<? super Tuple2<K,V>> predicate)
TreeMap<K,V>	TreeMap.takeWhile(@NonNull Predicate<? super Tuple2<K,V>> predicate)

Methods in io.vavr.collection that return types with arguments of type TreeMap

Modifier and Type	Method	Description
static <K extends Comparable<? super K>, V> Collector<Tuple2<K,V>, ArrayList<Tuple2<K,V>>, TreeMap<K,V>>	TreeMap.collector()	Returns a Collector which may be used in conjunction with Stream.collect(Collector) to obtain a TreeMap.
static <K,V> Collector<Tuple2<K,V>, ArrayList<Tuple2<K,V>>, TreeMap<K,V>>	TreeMap.collector(@NonNull Comparator<? super K> keyComparator)	Returns a Collector which may be used in conjunction with Stream.collect(Collector) to obtain a TreeMap.
static <K, V, T extends V> Collector<T, ArrayList<T>, TreeMap<K,V>>	TreeMap.collector(@NonNull Comparator<? super K> keyComparator, @NonNull Function<? super T, ? extends K> keyMapper)	Returns a Collector which may be used in conjunction with Stream.collect(java.util.stream.Collector) to obtain a TreeMap.
static <K,V,T> Collector<T, ArrayList<T>, TreeMap<K,V>>	TreeMap.collector(@NonNull Comparator<? super K> keyComparator, @NonNull Function<? super T, ? extends K> keyMapper, Function<? super T, ? extends V> valueMapper)	Returns a Collector which may be used in conjunction with Stream.collect(java.util.stream.Collector) to obtain a TreeMap.
static <K extends Comparable<? super K>, V, T extends V> Collector<T, ArrayList<T>, TreeMap<K,V>>	TreeMap.collector(@NonNull Function<? super T, ? extends K> keyMapper)	Returns a Collector which may be used in conjunction with Stream.collect(java.util.stream.Collector) to obtain a TreeMap.
static <K extends Comparable<? super K>, V, T> Collector<T, ArrayList<T>, TreeMap<K,V>>	TreeMap.collector(@NonNull Function<? super T, ? extends K> keyMapper, @NonNull Function<? super T, ? extends V> valueMapper)	Returns a Collector which may be used in conjunction with Stream.collect(java.util.stream.Collector) to obtain a TreeMap.
Tuple2<V, TreeMap<K,V>>	TreeMap.computeIfAbsent(K key, @NonNull Function<? super K, ? extends V> mappingFunction)
Tuple2<Option<V>, TreeMap<K,V>>	TreeMap.computeIfPresent(K key, @NonNull BiFunction<? super K, ? super V, ? extends V> remappingFunction)
private static <K,V> Collector<Tuple2<K,V>, ArrayList<Tuple2<K,V>>, TreeMap<K,V>>	TreeMap.createCollector(@NonNull TreeMap.EntryComparator<K,V> entryComparator)
private static <K,V,T> Collector<T, ArrayList<T>, TreeMap<K,V>>	TreeMap.createCollector(@NonNull TreeMap.EntryComparator<K,V> entryComparator, @NonNull Function<? super T, ? extends K> keyMapper, @NonNull Function<? super T, ? extends V> valueMapper)
<C> Map<C, TreeMap<K,V>>	TreeMap.groupBy(@NonNull Function<? super Tuple2<K,V>, ? extends C> classifier)
Iterator<TreeMap<K,V>>	TreeMap.grouped(int size)
Option<TreeMap<K,V>>	TreeMap.initOption()
Tuple2<TreeMap<K,V>, TreeMap<K,V>>	TreeMap.partition(@NonNull Predicate<? super Tuple2<K,V>> predicate)
Tuple2<TreeMap<K,V>, TreeMap<K,V>>	TreeMap.partition(@NonNull Predicate<? super Tuple2<K,V>> predicate)
Iterator<TreeMap<K,V>>	TreeMap.slideBy(@NonNull Function<? super Tuple2<K,V>, ?> classifier)
Iterator<TreeMap<K,V>>	TreeMap.sliding(int size)
Iterator<TreeMap<K,V>>	TreeMap.sliding(int size, int step)
Tuple2<TreeMap<K,V>, TreeMap<K,V>>	TreeMap.span(@NonNull Predicate<? super Tuple2<K,V>> predicate)
Tuple2<TreeMap<K,V>, TreeMap<K,V>>	TreeMap.span(@NonNull Predicate<? super Tuple2<K,V>> predicate)
Option<TreeMap<K,V>>	TreeMap.tailOption()

Methods in io.vavr.collection with parameters of type TreeMap

Modifier and Type	Method	Description
private static <K,K2,V,V2> TreeMap<K2,V2>	TreeMap.bimap(@NonNull TreeMap<K,V> map, @NonNull TreeMap.EntryComparator<K2,V2> entryComparator, Function<? super K, ? extends K2> keyMapper, Function<? super V, ? extends V2> valueMapper)
private static <K,V,K2,V2> TreeMap<K2,V2>	TreeMap.flatMap(@NonNull TreeMap<K,V> map, @NonNull TreeMap.EntryComparator<K2,V2> entryComparator, BiFunction<? super K, ? super V, ? extends Iterable<Tuple2<K2,V2>>> mapper)
private static <K,K2,V,V2> TreeMap<K2,V2>	TreeMap.map(@NonNull TreeMap<K,V> map, @NonNull TreeMap.EntryComparator<K2,V2> entryComparator, BiFunction<? super K, ? super V, Tuple2<K2,V2>> mapper)
static <K,V> TreeMap<K,V>	TreeMap.narrow(TreeMap<? extends K, ? extends V> treeMap)	Narrows a TreeMap<? extends K, ? extends V> to TreeMap<K, V> via a type-safe cast.