Uses of Interface
java.util.Comparator
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Packages that use Comparator Package Description java.lang Provides classes that are fundamental to the design of the Java programming language.java.text Provides classes and interfaces for handling text, dates, numbers, and messages in a manner independent of natural languages.java.time The main API for dates, times, instants, and durations.java.time.chrono Generic API for calendar systems other than the default ISO.java.util Contains the collections framework, legacy collection classes, event model, date and time facilities, internationalization, and miscellaneous utility classes (a string tokenizer, a random-number generator, and a bit array).java.util.concurrent Utility classes commonly useful in concurrent programming.java.util.function Functional interfaces provide target types for lambda expressions and method references.java.util.stream Classes to support functional-style operations on streams of elements, such as map-reduce transformations on collections.javax.swing Provides a set of "lightweight" (all-Java language) components that, to the maximum degree possible, work the same on all platforms.javax.swing.table Provides classes and interfaces for dealing withjavax.swing.JTable. -
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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_ORDERA Comparator that ordersStringobjects as bycompareToIgnoreCase. -
Uses of Comparator in java.text
Classes in java.text that implement Comparator Modifier and Type Class and Description classCollatorTheCollatorclass performs locale-sensitiveStringcomparison.classRuleBasedCollatorTheRuleBasedCollatorclass is a concrete subclass ofCollatorthat provides a simple, data-driven, table collator. -
Uses of Comparator in java.time
Methods in java.time that return Comparator Modifier and Type Method and Description static Comparator<OffsetDateTime>OffsetDateTime. timeLineOrder()Gets a comparator that compares twoOffsetDateTimeinstances based solely on the instant. -
Uses of Comparator in java.time.chrono
Methods in java.time.chrono that return Comparator Modifier and Type Method and Description static Comparator<ChronoLocalDateTime<?>>ChronoLocalDateTime. timeLineOrder()Gets a comparator that comparesChronoLocalDateTimein time-line order ignoring the chronology.static Comparator<ChronoLocalDate>ChronoLocalDate. timeLineOrder()Gets a comparator that comparesChronoLocalDatein time-line order ignoring the chronology.static Comparator<ChronoZonedDateTime<?>>ChronoZonedDateTime. timeLineOrder()Gets a comparator that comparesChronoZonedDateTimein time-line order ignoring the chronology. -
Uses of Comparator in java.util
Methods in java.util that return Comparator Modifier and Type Method and Description Comparator<? super E>TreeSet. comparator()Comparator<? super E>PriorityQueue. comparator()Returns the comparator used to order the elements in this queue, ornullif this queue is sorted according to the natural ordering of its elements.Comparator<? super E>SortedSet. comparator()Returns the comparator used to order the elements in this set, or null if this set uses the natural ordering of its elements.Comparator<? super K>TreeMap. comparator()Comparator<? super K>SortedMap. comparator()Returns the comparator used to order the keys in this map, ornullif this map uses the natural ordering of its keys.static <T,U extends Comparable<? super U>>
Comparator<T>Comparator. comparing(Function<? super T,? extends U> keyExtractor)Accepts a function that extracts aComparablesort key from a typeT, and returns aComparator<T>that compares by that sort key.static <T,U> Comparator<T>Comparator. comparing(Function<? super T,? extends U> keyExtractor, Comparator<? super U> keyComparator)Accepts a function that extracts a sort key from a typeT, and returns aComparator<T>that compares by that sort key using the specifiedComparator.static <K extends Comparable<? super K>,V>
Comparator<Map.Entry<K,V>>Map.Entry. comparingByKey()Returns a comparator that comparesMap.Entryin natural order on key.static <K,V> Comparator<Map.Entry<K,V>>Map.Entry. comparingByKey(Comparator<? super K> cmp)Returns a comparator that comparesMap.Entryby key using the givenComparator.static <K,V extends Comparable<? super V>>
Comparator<Map.Entry<K,V>>Map.Entry. comparingByValue()Returns a comparator that comparesMap.Entryin natural order on value.static <K,V> Comparator<Map.Entry<K,V>>Map.Entry. comparingByValue(Comparator<? super V> cmp)Returns a comparator that comparesMap.Entryby value using the givenComparator.static <T> Comparator<T>Comparator. comparingDouble(ToDoubleFunction<? super T> keyExtractor)Accepts a function that extracts adoublesort key from a typeT, and returns aComparator<T>that compares by that sort key.static <T> Comparator<T>Comparator. comparingInt(ToIntFunction<? super T> keyExtractor)Accepts a function that extracts anintsort key from a typeT, and returns aComparator<T>that compares by that sort key.static <T> Comparator<T>Comparator. comparingLong(ToLongFunction<? super T> keyExtractor)Accepts a function that extracts alongsort key from a typeT, and returns aComparator<T>that compares by that sort key.default Comparator<? super T>Spliterator. getComparator()static <T extends Comparable<? super T>>
Comparator<T>Comparator. naturalOrder()Returns a comparator that comparesComparableobjects in natural order.static <T> Comparator<T>Comparator. nullsFirst(Comparator<? super T> comparator)Returns a null-friendly comparator that considersnullto be less than non-null.static <T> Comparator<T>Comparator. nullsLast(Comparator<? super T> comparator)Returns a null-friendly comparator that considersnullto be greater than non-null.default Comparator<T>Comparator. reversed()Returns a comparator that imposes the reverse ordering of this comparator.static <T> Comparator<T>Collections. reverseOrder()Returns a comparator that imposes the reverse of the natural ordering on a collection of objects that implement theComparableinterface.static <T extends Comparable<? super T>>
Comparator<T>Comparator. reverseOrder()Returns a comparator that imposes the reverse of the natural ordering.static <T> Comparator<T>Collections. reverseOrder(Comparator<T> cmp)Returns a comparator that imposes the reverse ordering of the specified comparator.default Comparator<T>Comparator. thenComparing(Comparator<? super T> other)Returns a lexicographic-order comparator with another comparator.default <U extends Comparable<? super U>>
Comparator<T>Comparator. thenComparing(Function<? super T,? extends U> keyExtractor)Returns a lexicographic-order comparator with a function that extracts aComparablesort key.default <U> Comparator<T>Comparator. thenComparing(Function<? super T,? extends U> keyExtractor, Comparator<? super U> keyComparator)Returns a lexicographic-order comparator with a function that extracts a key to be compared with the givenComparator.default Comparator<T>Comparator. thenComparingDouble(ToDoubleFunction<? super T> keyExtractor)Returns a lexicographic-order comparator with a function that extracts adoublesort key.default Comparator<T>Comparator. thenComparingInt(ToIntFunction<? super T> keyExtractor)Returns a lexicographic-order comparator with a function that extracts aintsort key.default Comparator<T>Comparator. thenComparingLong(ToLongFunction<? super T> keyExtractor)Returns a lexicographic-order comparator with a function that extracts alongsort key.Methods in java.util with parameters of type Comparator Modifier and Type Method and Description static <T> intCollections. binarySearch(List<? extends T> list, T key, Comparator<? super T> c)Searches the specified list for the specified object using the binary search algorithm.static <T> intArrays. binarySearch(T[] a, int fromIndex, int toIndex, T key, Comparator<? super T> c)Searches a range of the specified array for the specified object using the binary search algorithm.static <T> intArrays. binarySearch(T[] a, T key, Comparator<? super T> c)Searches the specified array for the specified object using the binary search algorithm.static <T> intObjects. compare(T a, T b, Comparator<? super T> c)Returns 0 if the arguments are identical andc.compare(a, b)otherwise.static <T,U> Comparator<T>Comparator. comparing(Function<? super T,? extends U> keyExtractor, Comparator<? super U> keyComparator)Accepts a function that extracts a sort key from a typeT, and returns aComparator<T>that compares by that sort key using the specifiedComparator.static <K,V> Comparator<Map.Entry<K,V>>Map.Entry. comparingByKey(Comparator<? super K> cmp)Returns a comparator that comparesMap.Entryby key using the givenComparator.static <K,V> Comparator<Map.Entry<K,V>>Map.Entry. comparingByValue(Comparator<? super V> cmp)Returns a comparator that comparesMap.Entryby value using the givenComparator.static <T> TCollections. max(Collection<? extends T> coll, Comparator<? super T> comp)Returns the maximum element of the given collection, according to the order induced by the specified comparator.static <T> TCollections. min(Collection<? extends T> coll, Comparator<? super T> comp)Returns the minimum element of the given collection, according to the order induced by the specified comparator.static <T> Comparator<T>Comparator. nullsFirst(Comparator<? super T> comparator)Returns a null-friendly comparator that considersnullto be less than non-null.static <T> Comparator<T>Comparator. nullsLast(Comparator<? super T> comparator)Returns a null-friendly comparator that considersnullto be greater than non-null.static <T> voidArrays. parallelSort(T[] a, Comparator<? super T> cmp)Sorts the specified array of objects according to the order induced by the specified comparator.static <T> voidArrays. parallelSort(T[] a, int fromIndex, int toIndex, Comparator<? super T> cmp)Sorts the specified range of the specified array of objects according to the order induced by the specified comparator.static <T> Comparator<T>Collections. reverseOrder(Comparator<T> cmp)Returns a comparator that imposes the reverse ordering of the specified comparator.voidArrayList. sort(Comparator<? super E> c)voidVector. sort(Comparator<? super E> c)default voidList. sort(Comparator<? super E> c)Sorts this list according to the order induced by the specifiedComparator.static <T> voidCollections. sort(List<T> list, Comparator<? super T> c)Sorts the specified list according to the order induced by the specified comparator.static <T> voidArrays. sort(T[] a, Comparator<? super T> c)Sorts the specified array of objects according to the order induced by the specified comparator.static <T> voidArrays. sort(T[] a, int fromIndex, int toIndex, Comparator<? super T> c)Sorts the specified range of the specified array of objects according to the order induced by the specified comparator.default Comparator<T>Comparator. thenComparing(Comparator<? super T> other)Returns a lexicographic-order comparator with another comparator.default <U> Comparator<T>Comparator. thenComparing(Function<? super T,? extends U> keyExtractor, Comparator<? super U> keyComparator)Returns a lexicographic-order comparator with a function that extracts a key to be compared with the givenComparator.Constructors in java.util with parameters of type Comparator Constructor and Description PriorityQueue(Comparator<? super E> comparator)Creates aPriorityQueuewith the default initial capacity and whose elements are ordered according to the specified comparator.PriorityQueue(int initialCapacity, Comparator<? super E> comparator)Creates aPriorityQueuewith the specified initial capacity that orders its elements according to the specified comparator.TreeMap(Comparator<? super K> comparator)Constructs a new, empty tree map, ordered according to the given comparator.TreeSet(Comparator<? super E> comparator)Constructs a new, empty tree set, sorted according to the specified comparator. -
Uses of Comparator in java.util.concurrent
Methods in java.util.concurrent that return Comparator Modifier and Type Method and Description Comparator<? super E>PriorityBlockingQueue. comparator()Returns the comparator used to order the elements in this queue, ornullif this queue uses the natural ordering of its elements.Comparator<? super E>ConcurrentSkipListSet. comparator()Comparator<? super K>ConcurrentSkipListMap. comparator()Methods in java.util.concurrent with parameters of type Comparator Modifier and Type Method and Description voidCopyOnWriteArrayList. sort(Comparator<? super E> c)Constructors in java.util.concurrent with parameters of type Comparator Constructor and Description ConcurrentSkipListMap(Comparator<? super K> comparator)Constructs a new, empty map, sorted according to the specified comparator.ConcurrentSkipListSet(Comparator<? super E> comparator)Constructs a new, empty set that orders its elements according to the specified comparator.PriorityBlockingQueue(int initialCapacity, Comparator<? super E> comparator)Creates aPriorityBlockingQueuewith the specified initial capacity that orders its elements according to the specified comparator. -
Uses of Comparator in java.util.function
Methods in java.util.function with parameters of type Comparator Modifier and Type Method and Description static <T> BinaryOperator<T>BinaryOperator. maxBy(Comparator<? super T> comparator)Returns aBinaryOperatorwhich returns the greater of two elements according to the specifiedComparator.static <T> BinaryOperator<T>BinaryOperator. minBy(Comparator<? super T> comparator)Returns aBinaryOperatorwhich returns the lesser of two elements according to the specifiedComparator. -
Uses of Comparator in java.util.stream
Methods in java.util.stream with parameters of type Comparator Modifier and Type Method and Description Optional<T>Stream. max(Comparator<? super T> comparator)Returns the maximum element of this stream according to the providedComparator.static <T> Collector<T,?,Optional<T>>Collectors. maxBy(Comparator<? super T> comparator)Returns aCollectorthat produces the maximal element according to a givenComparator, described as anOptional<T>.Optional<T>Stream. min(Comparator<? super T> comparator)Returns the minimum element of this stream according to the providedComparator.static <T> Collector<T,?,Optional<T>>Collectors. minBy(Comparator<? super T> comparator)Returns aCollectorthat produces the minimal element according to a givenComparator, described as anOptional<T>.Stream<T>Stream. sorted(Comparator<? super T> comparator)Returns a stream consisting of the elements of this stream, sorted according to the providedComparator. -
Uses of Comparator in javax.swing
Methods in javax.swing that return Comparator Modifier and Type Method and Description protected Comparator<? super Component>SortingFocusTraversalPolicy. getComparator()Returns the Comparator which will be used to sort the Components in a focus traversal cycle.Comparator<?>DefaultRowSorter. getComparator(int column)Returns theComparatorfor the specified column.Methods in javax.swing with parameters of type Comparator Modifier and Type Method and Description protected voidSortingFocusTraversalPolicy. setComparator(Comparator<? super Component> comparator)Sets the Comparator which will be used to sort the Components in a focus traversal cycle.voidDefaultRowSorter. setComparator(int column, Comparator<?> comparator)Sets theComparatorto use when sorting the specified column.Constructors in javax.swing with parameters of type Comparator Constructor and Description SortingFocusTraversalPolicy(Comparator<? super Component> comparator)Constructs a SortingFocusTraversalPolicy with the specified Comparator. -
Uses of Comparator in javax.swing.table
Methods in javax.swing.table that return Comparator Modifier and Type Method and Description Comparator<?>TableRowSorter. getComparator(int column)Returns theComparatorfor the specified column.
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