Package it.unimi.dsi.fastutil.chars

Class CharSets.Singleton

java.lang.Object
java.util.AbstractCollection<java.lang.Character>
it.unimi.dsi.fastutil.chars.AbstractCharCollection
it.unimi.dsi.fastutil.chars.AbstractCharSet
it.unimi.dsi.fastutil.chars.CharSets.Singleton
All Implemented Interfaces:
CharCollection, CharIterable, CharSet, java.io.Serializable, java.lang.Cloneable, java.lang.Iterable<java.lang.Character>, java.util.Collection<java.lang.Character>, java.util.Set<java.lang.Character>
Direct Known Subclasses:
CharSortedSets.Singleton
Enclosing class:
CharSets
public static class CharSets.Singleton
extends AbstractCharSet
implements java.io.Serializable, java.lang.Cloneable
An immutable class representing a type-specific singleton set.

This class may be useful to implement your own in case you subclass a type-specific set.

See Also:
Serialized Form

  • Method Summary

    Modifier and Type Method Description
    boolean addAll​(CharCollection c)
    Adds all elements of the given type-specific collection to this collection.
    boolean addAll​(java.util.Collection<? extends java.lang.Character> c)
    java.lang.Object clone()  
    boolean contains​(char k)
    Returns true if this collection contains the specified element.
    void forEach​(CharConsumer action)
    Performs the given action for each element of this type-specific Iterable until all elements have been processed or the action throws an exception.
    void forEach​(java.util.function.Consumer<? super java.lang.Character> action)
    Deprecated.
    IntIterator intIterator()
    Returns a widened primitive iterator on the elements of this collection.
    IntSpliterator intSpliterator()
    Returns widened primitive spliterator on the elements of this collection.
    CharListIterator iterator()
    Returns a type-specific iterator on the elements of this collection.
    boolean remove​(char k)
    Removes an element from this set.
    boolean removeAll​(CharCollection c)
    Remove from this collection all elements in the given type-specific collection.
    boolean removeAll​(java.util.Collection<?> c)
    boolean removeIf​(CharPredicate filter)
    Remove from this collection all elements which satisfy the given predicate.
    boolean removeIf​(java.util.function.Predicate<? super java.lang.Character> filter)
    Deprecated.
    boolean retainAll​(CharCollection c)
    Retains in this collection only elements from the given type-specific collection.
    boolean retainAll​(java.util.Collection<?> c)
    int size()  
    CharSpliterator spliterator()
    Returns a type-specific spliterator on the elements of this set.
    java.lang.Object[] toArray()
    Deprecated.
    char[] toCharArray()
    Returns a primitive type array containing the items of this collection.

    Methods inherited from class it.unimi.dsi.fastutil.chars.AbstractCharSet

    equals, hashCode, rem

    Methods inherited from class it.unimi.dsi.fastutil.chars.AbstractCharCollection

    add, add, contains, containsAll, containsAll, remove, toArray, toCharArray, toString

    Methods inherited from class java.util.AbstractCollection

    clear, isEmpty, toArray

    Methods inherited from class java.lang.Object

    getClass, notify, notifyAll, wait, wait, wait

    Methods inherited from interface it.unimi.dsi.fastutil.chars.CharCollection

    add, containsAll, intParallelStream, intStream, parallelStream, removeIf, stream, toArray, toCharArray

    Methods inherited from interface it.unimi.dsi.fastutil.chars.CharIterable

    forEach

    Methods inherited from interface it.unimi.dsi.fastutil.chars.CharSet

    add, contains, remove

    Methods inherited from interface java.util.Collection

    toArray

    Methods inherited from interface java.util.Set

    clear, containsAll, isEmpty, toArray

  • Method Details

    • contains

      public boolean contains​(char k)
      Description copied from class: AbstractCharCollection
      Returns true if this collection contains the specified element.
      Specified by:
      contains in interface CharCollection
      Overrides:
      contains in class AbstractCharCollection
      See Also:
      Collection.contains(Object)

    • remove

      public boolean remove​(char k)
      Description copied from class: AbstractCharSet
      Removes an element from this set. Delegates to the type-specific rem() method implemented by type-specific abstract Collection superclass.
      Specified by:
      remove in interface CharSet
      Overrides:
      remove in class AbstractCharSet
      See Also:
      Collection.remove(Object)

    • iterator

      public CharListIterator iterator()
      Description copied from interface: CharCollection
      Returns a type-specific iterator on the elements of this collection.
      Specified by:
      iterator in interface CharCollection
      Specified by:
      iterator in interface CharIterable
      Specified by:
      iterator in interface CharSet
      Specified by:
      iterator in interface java.util.Collection<java.lang.Character>
      Specified by:
      iterator in interface java.lang.Iterable<java.lang.Character>
      Specified by:
      iterator in interface java.util.Set<java.lang.Character>
      Specified by:
      iterator in class AbstractCharSet
      Returns:
      a type-specific iterator on the elements of this collection.
      See Also:
      Iterable.iterator()

    • spliterator

      public CharSpliterator spliterator()
      Description copied from interface: CharSet
      Returns a type-specific spliterator on the elements of this set.

      Set spliterators must report at least Spliterator.DISTINCT.

      See Set.spliterator() for more documentation on the requirements of the returned spliterator.

      Specified by:
      spliterator in interface CharCollection
      Specified by:
      spliterator in interface CharIterable
      Specified by:
      spliterator in interface CharSet
      Specified by:
      spliterator in interface java.util.Collection<java.lang.Character>
      Specified by:
      spliterator in interface java.lang.Iterable<java.lang.Character>
      Specified by:
      spliterator in interface java.util.Set<java.lang.Character>
      Returns:
      a type-specific spliterator on the elements of this collection.

    • size

      public int size()
      Specified by:
      size in interface java.util.Collection<java.lang.Character>
      Specified by:
      size in interface java.util.Set<java.lang.Character>
      Specified by:
      size in class java.util.AbstractCollection<java.lang.Character>

    • toCharArray

      public char[] toCharArray()
      Description copied from interface: CharCollection
      Returns a primitive type array containing the items of this collection.
      Specified by:
      toCharArray in interface CharCollection
      Overrides:
      toCharArray in class AbstractCharCollection
      Returns:
      a primitive type array containing the items of this collection.
      See Also:
      Collection.toArray()

    • forEach

      @Deprecated public void forEach​(java.util.function.Consumer<? super java.lang.Character> action)
      Deprecated.
      Description copied from interface: CharIterable
      Specified by:
      forEach in interface CharIterable
      Specified by:
      forEach in interface java.lang.Iterable<java.lang.Character>

    • addAll

      public boolean addAll​(java.util.Collection<? extends java.lang.Character> c)
      Description copied from class: AbstractCharCollection
      Specified by:
      addAll in interface java.util.Collection<java.lang.Character>
      Specified by:
      addAll in interface java.util.Set<java.lang.Character>
      Overrides:
      addAll in class AbstractCharCollection

    • removeAll

      public boolean removeAll​(java.util.Collection<?> c)
      Description copied from class: AbstractCharCollection
      Specified by:
      removeAll in interface java.util.Collection<java.lang.Character>
      Specified by:
      removeAll in interface java.util.Set<java.lang.Character>
      Overrides:
      removeAll in class AbstractCharCollection

    • retainAll

      public boolean retainAll​(java.util.Collection<?> c)
      Description copied from class: AbstractCharCollection
      Specified by:
      retainAll in interface java.util.Collection<java.lang.Character>
      Specified by:
      retainAll in interface java.util.Set<java.lang.Character>
      Overrides:
      retainAll in class AbstractCharCollection

    • removeIf

      @Deprecated public boolean removeIf​(java.util.function.Predicate<? super java.lang.Character> filter)
      Deprecated.
      Description copied from interface: CharCollection
      Specified by:
      removeIf in interface CharCollection
      Specified by:
      removeIf in interface java.util.Collection<java.lang.Character>

    • forEach

      public void forEach​(CharConsumer action)
      Description copied from interface: CharIterable
      Performs the given action for each element of this type-specific Iterable until all elements have been processed or the action throws an exception.
      Specified by:
      forEach in interface CharIterable
      Parameters:
      action - the action to be performed for each element.
      See Also:
      Iterable.forEach(java.util.function.Consumer)

    • addAll

      public boolean addAll​(CharCollection c)
      Description copied from interface: CharCollection
      Adds all elements of the given type-specific collection to this collection.
      Specified by:
      addAll in interface CharCollection
      Overrides:
      addAll in class AbstractCharCollection
      Parameters:
      c - a type-specific collection.
      Returns:
      true if this collection changed as a result of the call.
      See Also:
      Collection.addAll(Collection)

    • removeAll

      public boolean removeAll​(CharCollection c)
      Description copied from interface: CharCollection
      Remove from this collection all elements in the given type-specific collection.
      Specified by:
      removeAll in interface CharCollection
      Overrides:
      removeAll in class AbstractCharCollection
      Parameters:
      c - a type-specific collection.
      Returns:
      true if this collection changed as a result of the call.
      See Also:
      Collection.removeAll(Collection)

    • retainAll

      public boolean retainAll​(CharCollection c)
      Description copied from interface: CharCollection
      Retains in this collection only elements from the given type-specific collection.
      Specified by:
      retainAll in interface CharCollection
      Overrides:
      retainAll in class AbstractCharCollection
      Parameters:
      c - a type-specific collection.
      Returns:
      true if this collection changed as a result of the call.
      See Also:
      Collection.retainAll(Collection)

    • removeIf

      public boolean removeIf​(CharPredicate filter)
      Description copied from interface: CharCollection
      Remove from this collection all elements which satisfy the given predicate.
      Specified by:
      removeIf in interface CharCollection
      Parameters:
      filter - a predicate which returns true for elements to be removed.
      Returns:
      true if any elements were removed.
      See Also:
      Collection.removeIf(java.util.function.Predicate)

    • intIterator

      public IntIterator intIterator()
      Description copied from interface: CharCollection
      Returns a widened primitive iterator on the elements of this collection.

      This method is provided for the purpose of APIs that expect only the JDK's primitive iterators, of which there are only int, long, and double.

      WARNING: This is not the same as converting the source to a sequence of code points. This returned instance literally performs (int)(charValue) casts. Surrogate pairs will be left as separate elements instead of combined into a single element with the code point it represents. See Character for more discussion on code points, char values, and surrogate pairs.

      Specified by:
      intIterator in interface CharCollection
      Specified by:
      intIterator in interface CharIterable
      Returns:
      a widened primitive iterator on the elements of this collection.

    • intSpliterator

      public IntSpliterator intSpliterator()
      Description copied from interface: CharCollection
      Returns widened primitive spliterator on the elements of this collection.

      This method is provided for the purpose of APIs that expect only the JDK's primitive spliterators, of which there are only int, long, and double.

      WARNING: This is not the same as converting the source to a sequence of code points. This returned instance literally performs (int)(charValue) casts. Surrogate pairs will be left as separate elements instead of combined into a single element with the code point it represents. See Character for more discussion on code points, char values, and surrogate pairs.

      Specified by:
      intSpliterator in interface CharCollection
      Specified by:
      intSpliterator in interface CharIterable
      Returns:
      a widened primitive spliterator on the elements of this collection.

    • toArray

      @Deprecated public java.lang.Object[] toArray()
      Deprecated.
      Specified by:
      toArray in interface java.util.Collection<java.lang.Character>
      Specified by:
      toArray in interface java.util.Set<java.lang.Character>
      Overrides:
      toArray in class java.util.AbstractCollection<java.lang.Character>

    • clone

      public java.lang.Object clone()