Package it.unimi.dsi.fastutil.booleans

Class BooleanArraySet

java.lang.Object
java.util.AbstractCollection<Boolean>
it.unimi.dsi.fastutil.booleans.AbstractBooleanCollection
it.unimi.dsi.fastutil.booleans.AbstractBooleanSet
it.unimi.dsi.fastutil.booleans.BooleanArraySet
All Implemented Interfaces:
BooleanCollection, BooleanIterable, BooleanSet, Serializable, Cloneable, Iterable<Boolean>, Collection<Boolean>, Set<Boolean>
public class BooleanArraySet
extends AbstractBooleanSet
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:
Serialized Form

  • Constructor Details

    • BooleanArraySet

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

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

      Parameters:
      a - the backing array.

    • BooleanArraySet

      public BooleanArraySet()
      Creates a new empty array set.

    • BooleanArraySet

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

    • BooleanArraySet

      public BooleanArraySet​(BooleanCollection c)
      Creates a new array set copying the contents of a given collection.
      Parameters:
      c - a collection.

    • BooleanArraySet

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

    • BooleanArraySet

      public BooleanArraySet​(BooleanSet c)
      Creates a new array set copying the contents of a given collection.
      Parameters:
      c - a collection.

    • BooleanArraySet

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

    • BooleanArraySet

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

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

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

  • Method Details