Package it.unimi.dsi.fastutil.chars

Class CharArraySet

java.lang.Object
java.util.AbstractCollection<Character>
it.unimi.dsi.fastutil.chars.AbstractCharCollection
it.unimi.dsi.fastutil.chars.AbstractCharSet
it.unimi.dsi.fastutil.chars.CharArraySet
All Implemented Interfaces:
CharCollection, CharIterable, CharSet, Serializable, Cloneable, Iterable<Character>, Collection<Character>, Set<Character>
public class CharArraySet extends AbstractCharSet implements Serializable, Cloneable
A simple, brute-force implementation of a set based on a backing array.

The main purpose of this implementation is that of wrapping cleanly the brute-force approach to the storage of a very small number of items: just put them into an array and scan linearly to find an item.

See Also:

  • Constructor Details

    • CharArraySet

      public CharArraySet(char[] a)
      Creates a new array set using the given backing array. The resulting set will have as many elements as the array.

      It is the responsibility of the caller to ensure that the elements of a are distinct.

      Parameters:
      a - the backing array.

    • CharArraySet

      public CharArraySet()
      Creates a new empty array set.

    • CharArraySet

      public CharArraySet(int capacity)
      Creates a new empty array set of given initial capacity.
      Parameters:
      capacity - the initial capacity.

    • CharArraySet

      public CharArraySet(CharCollection c)
      Creates a new array set copying the contents of a given collection.
      Parameters:
      c - a collection.

    • CharArraySet

      public CharArraySet(Collection<? extends Character> c)
      Creates a new array set copying the contents of a given set.
      Parameters:
      c - a collection.

    • CharArraySet

      public CharArraySet(CharSet c)
      Creates a new array set copying the contents of a given collection.
      Parameters:
      c - a collection.

    • CharArraySet

      public CharArraySet(Set<? extends Character> c)
      Creates a new array set copying the contents of a given set.
      Parameters:
      c - a collection.

    • CharArraySet

      public CharArraySet(char[] a, int size)
      Creates a new array set using the given backing array and the given number of elements of the array.

      It is the responsibility of the caller to ensure that the first size elements of a are distinct.

      Parameters:
      a - the backing array.
      size - the number of valid elements in a.

  • Method Details