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## Uses of Interface
java.util.Comparator

Packages that use Comparator
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.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).

Uses of Comparator in java.lang

Fields in java.lang declared as Comparator
`static Comparator` | `String.CASE_INSENSITIVE_ORDER` Returns a Comparator that orders `String` objects as by `compareToIgnoreCase`.

Uses of Comparator in java.text

Classes in java.text that implement Comparator
`class` | `Collator` The `Collator` class performs locale-sensitive `String` comparison.
`class` | `RuleBasedCollator` The `RuleBasedCollator` class is a concrete subclass of `Collator` that provides a simple, data-driven, table collator.

Uses of Comparator in java.util

Methods in java.util that return Comparator
`Comparator` | `TreeSet.comparator()` Returns the comparator used to order this sorted set, or `null` if this tree set uses its elements natural ordering.
`static Comparator` | `Collections.reverseOrder()` Returns a comparator that imposes the reverse of the natural ordering on a collection of objects that implement the `Comparable` interface.
`Comparator` | `SortedSet.comparator()` Returns the comparator associated with this sorted set, or `null` if it uses its elements' natural ordering.
`Comparator` | `TreeMap.comparator()` Returns the comparator used to order this map, or `null` if this map uses its keys' natural order.
`Comparator` | `SortedMap.comparator()` Returns the comparator associated with this sorted map, or `null` if it uses its keys' natural ordering.

Methods in java.util with parameters of type Comparator
`static void` | `Arrays.sort(Object[] a, Comparator c)` Sorts the specified array of objects according to the order induced by the specified comparator.
`static void` | `Arrays.sort(Object[] a, int fromIndex, int toIndex, Comparator c)` Sorts the specified range of the specified array of objects according to the order induced by the specified comparator.
`static int` | `Arrays.binarySearch(Object[] a, Object key, Comparator c)` Searches the specified array for the specified object using the binary search algorithm.
`static void` | `Collections.sort(List list, Comparator c)` Sorts the specified list according to the order induced by the specified comparator.
`static int` | `Collections.binarySearch(List list, Object key, Comparator c)` Searches the specified list for the specified object using the binary search algorithm.
`static Object` | `Collections.min(Collection coll, Comparator comp)` Returns the minimum element of the given collection, according to the order induced by the specified comparator.
`static Object` | `Collections.max(Collection coll, Comparator comp)` Returns the maximum element of the given collection, according to the order induced by the specified comparator.

Constructors in java.util with parameters of type Comparator
`TreeSet(Comparator c)` Constructs a new, empty set, sorted according to the given comparator.
`TreeMap(Comparator c)` Constructs a new, empty map, sorted according to the given comparator.

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

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