Uses of Interface
java.util.Comparator

Packages that use Comparator

Package	Description
java.lang
java.util

Uses of Comparator in java.lang

Fields in java.lang declared as Comparator

Modifier and Type	Field and Description
static Comparator<String>	String.CASE_INSENSITIVE_ORDER

Uses of Comparator in java.util

Methods in java.util that return Comparator

Modifier and Type	Method and Description
Comparator<? super E>	TreeSet.comparator() Returns the comparator used to compare elements in this TreeSet.
Comparator<? super K>	TreeMap.comparator() Returns the comparator used to compare elements in this map.
Comparator<? super E>	SortedSet.comparator() Returns the comparator used to compare elements in this SortedSet.
Comparator<? super K>	SortedMap.comparator() Returns the comparator used to compare keys in this sorted map.
Comparator<? super E>	PriorityQueue.comparator() Gets the comparator of the priority queue.
static <T> Comparator<T>	Collections.reverseOrder() A comparator which reverses the natural order of the elements.
static <T> Comparator<T>	Collections.reverseOrder(Comparator<T> c) Returns a Comparator that reverses the order of the Comparator passed.

Methods in java.util with parameters of type Comparator

Modifier and Type	Method and Description
static <T> int	Collections.binarySearch(List<? extends T> list, T object, Comparator<? super T> comparator) Performs a binary search for the specified element in the specified sorted list using the specified comparator.
static <T> int	Arrays.binarySearch(T[] array, int startIndex, int endIndex, T object, Comparator<? super T> comparator) Performs a binary search for the specified element in a part of the specified sorted array using the Comparator to compare elements.
static <T> int	Arrays.binarySearch(T[] array, T object, Comparator<? super T> comparator) Performs a binary search for the specified element in the specified sorted array using the Comparator to compare elements.
static <T> int	Objects.compare(T a, T b, Comparator<? super T> c)
static <T> T	Collections.max(Collection<? extends T> collection, Comparator<? super T> comparator) Searches the specified collection for the maximum element using the specified comparator.
static <T> T	Collections.min(Collection<? extends T> collection, Comparator<? super T> comparator) Searches the specified collection for the minimum element using the specified comparator.
static <T> Comparator<T>	Collections.reverseOrder(Comparator<T> c) Returns a Comparator that reverses the order of the Comparator passed.
static <T> void	Collections.sort(List<T> list, Comparator<? super T> comparator) Sorts the specified list using the specified comparator.
static <T> void	Arrays.sort(T[] array, Comparator<? super T> comparator) Sorts the specified array using the specified Comparator.
static <T> void	Arrays.sort(T[] array, int start, int end, Comparator<? super T> comparator) Sorts the specified range in the array using the specified Comparator.

Constructors in java.util with parameters of type Comparator

Constructor and Description
PriorityQueue(int initialCapacity, Comparator<? super E> comparator) Constructs a priority queue with the specified capacity and comparator.
TreeMap(Comparator<? super K> comparator) Constructs a new empty TreeMap instance with the specified comparator.
TreeSet(Comparator<? super E> comparator) Constructs a new empty instance of TreeSet which uses the specified comparator.