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Summary: Methods | Inherited Methods | [Expand All]

Added in API level 1

public interface

SortedSet

implements Set<E>

java.util.SortedSet<E>

Known Indirect Subclasses

ConcurrentSkipListSet<E>, NavigableSet<E>, TreeSet<E>

Class Overview

SortedSet is a Set which iterates over its elements in a sorted order. The order is determined either by the elements natural ordering, or by a Comparator which is passed into a concrete implementation at construction time. All elements in this set must be mutually comparable. The ordering in this set must be consistent with equals of its elements.

Summary

Public Methods
abstract Comparator<? super E>	comparator() Returns the comparator used to compare elements in this `SortedSet`.
abstract E	first() Returns the first element in this `SortedSet`.
abstract SortedSet<E>	headSet(E end) Returns a `SortedSet` of the specified portion of this `SortedSet` which contains elements less than the end element.
abstract E	last() Returns the last element in this `SortedSet`.
abstract SortedSet<E>	subSet(E start, E end) Returns a `SortedSet` of the specified portion of this `SortedSet` which contains elements greater or equal to the start element but less than the end element.
abstract SortedSet<E>	tailSet(E start) Returns a `SortedSet` of the specified portion of this `SortedSet` which contains elements greater or equal to the start element.

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Inherited Methods

From interface java.util.Set

abstract boolean	add(E object) Adds the specified object to this set.
abstract boolean	addAll(Collection<? extends E> collection) Adds the objects in the specified collection which do not exist yet in this set.
abstract void	clear() Removes all elements from this set, leaving it empty.
abstract boolean	contains(Object object) Searches this set for the specified object.
abstract boolean	containsAll(Collection<?> collection) Searches this set for all objects in the specified collection.
abstract boolean	equals(Object object) Compares the specified object to this set, and returns true if they represent the same object using a class specific comparison.
abstract int	hashCode() Returns the hash code for this set.
abstract boolean	isEmpty() Returns true if this set has no elements.
abstract Iterator<E>	iterator() Returns an iterator on the elements of this set.
abstract boolean	remove(Object object) Removes the specified object from this set.
abstract boolean	removeAll(Collection<?> collection) Removes all objects in the specified collection from this set.
abstract boolean	retainAll(Collection<?> collection) Removes all objects from this set that are not contained in the specified collection.
abstract int	size() Returns the number of elements in this set.
abstract <T> T[]	toArray(T[] array) Returns an array containing all elements contained in this set.
abstract Object[]	toArray() Returns an array containing all elements contained in this set.

From interface java.util.Collection

abstract boolean	add(E object) Attempts to add `object` to the contents of this `Collection` (optional).
abstract boolean	addAll(Collection<? extends E> collection) Attempts to add all of the objects contained in `Collection` to the contents of this `Collection` (optional).
abstract void	clear() Removes all elements from this `Collection`, leaving it empty (optional).
abstract boolean	contains(Object object) Tests whether this `Collection` contains the specified object.
abstract boolean	containsAll(Collection<?> collection) Tests whether this `Collection` contains all objects contained in the specified `Collection`.
abstract boolean	equals(Object object) Compares the argument to the receiver, and returns true if they represent the same object using a class specific comparison.
abstract int	hashCode() Returns an integer hash code for the receiver.
abstract boolean	isEmpty() Returns if this `Collection` contains no elements.
abstract Iterator<E>	iterator() Returns an instance of `Iterator` that may be used to access the objects contained by this `Collection`.
abstract boolean	remove(Object object) Removes one instance of the specified object from this `Collection` if one is contained (optional).
abstract boolean	removeAll(Collection<?> collection) Removes all occurrences in this `Collection` of each object in the specified `Collection` (optional).
abstract boolean	retainAll(Collection<?> collection) Removes all objects from this `Collection` that are not also found in the `Collection` passed (optional).
abstract int	size() Returns a count of how many objects this `Collection` contains.
abstract <T> T[]	toArray(T[] array) Returns an array containing all elements contained in this `Collection`.
abstract Object[]	toArray() Returns a new array containing all elements contained in this `Collection`.

From interface java.lang.Iterable

Public Methods

public abstract Comparator<? super E> comparator ()

Added in API level 1

Returns the comparator used to compare elements in this SortedSet.

Returns

a comparator or null if the natural ordering is used.

public abstract E first ()

Added in API level 1

Returns the first element in this SortedSet. The first element is the lowest element.

Returns

the first element.

Throws

NoSuchElementException	when this `SortedSet` is empty.

public abstract SortedSet<E> headSet (E end)

Added in API level 1

Returns a SortedSet of the specified portion of this SortedSet which contains elements less than the end element. The returned SortedSet is backed by this SortedSet so changes to one set are reflected by the other.

Parameters

end	the end element.

Returns

a subset where the elements are less than end.

Throws

ClassCastException	when the class of the end element is inappropriate for this SubSet.
NullPointerException	when the end element is null and this `SortedSet` does not support null elements.

public abstract E last ()

Added in API level 1

Returns the last element in this SortedSet. The last element is the highest element.

Returns

the last element.

Throws

NoSuchElementException	when this `SortedSet` is empty.

public abstract SortedSet<E> subSet (E start, E end)

Added in API level 1

Returns a SortedSet of the specified portion of this SortedSet which contains elements greater or equal to the start element but less than the end element. The returned SortedSet is backed by this SortedMap so changes to one set are reflected by the other.

Parameters

start	the start element.
end	the end element.

Returns

a subset where the elements are greater or equal to start and less than end.

Throws

ClassCastException	when the class of the start or end element is inappropriate for this SubSet.
NullPointerException	when the start or end element is null and this `SortedSet` does not support null elements.
IllegalArgumentException	when the start element is greater than the end element.

public abstract SortedSet<E> tailSet (E start)

Added in API level 1

Returns a SortedSet of the specified portion of this SortedSet which contains elements greater or equal to the start element. The returned SortedSet is backed by this SortedSet so changes to one set are reflected by the other.

Parameters

start	the start element.

Returns

a subset where the elements are greater or equal to start .

Throws

ClassCastException	when the class of the start element is inappropriate for this SubSet.
NullPointerException	when the start element is null and this `SortedSet` does not support null elements.

Results

Interfaces

Classes

Enums

Exceptions

Errors

SortedSet

Class Overview

See Also

Summary

Public Methods

public abstract Comparator<? super E> comparator ()

Returns

public abstract E first ()

Returns

Throws

public abstract SortedSet<E> headSet (E end)

Parameters

Returns

Throws

public abstract E last ()

Returns

Throws

public abstract SortedSet<E> subSet (E start, E end)

Parameters

Returns

Throws

public abstract SortedSet<E> tailSet (E start)

Parameters

Returns

Throws