public class ArraySet
extends java.util.ArrayList
implements java.util.Set
Set interface from the collections framework. A set cannot contain duplicate elements.
For the util package documentation, see Package java.util.
| Constructor and Description |
|---|
ArraySet()
Creates an empty set.
|
ArraySet(java.util.Collection c)
Creates a set that contains all of the elements of the specified
Collection in the order returned by the iterator of the Collection. |
ArraySet(int initialCapacity)
Creates an empty set whose size is the specified initial capacity.
|
| Modifier and Type | Method and Description |
|---|---|
boolean |
add(java.lang.Object o)
Adds the specified element to the end of the set if the element is not already present in the set.
|
boolean |
equals(java.lang.Object o)
Determines whether the specified
Object contains the same set of elements as this ArraySet. |
int |
hashCode()
Gets the hash code value for the
ArraySet, which is the sum of all of the hash codes of the elements of the set. |
add, addAll, addAll, clear, clone, contains, ensureCapacity, forEach, get, indexOf, isEmpty, iterator, lastIndexOf, listIterator, listIterator, remove, remove, removeAll, removeIf, removeRange, replaceAll, retainAll, set, size, sort, spliterator, subList, toArray, toArray, trimToSizefinalize, getClass, notify, notifyAll, wait, wait, waitpublic ArraySet()
public ArraySet(java.util.Collection c)
Collection in the order returned by the iterator of the Collection.c - A Collection that has the elements that you want the ArraySet to have.public ArraySet(int initialCapacity)
initialCapacity - An integer that specifies an initial size for the ArraySet.public boolean add(java.lang.Object o)
add in interface java.util.Collectionadd in interface java.util.Listadd in interface java.util.Setadd in class java.util.ArrayListo - The element to add to the set.boolean that is true if this method adds the element to the set or false if it does not.public boolean equals(java.lang.Object o)
Object contains the same set of elements as this ArraySet.equals in interface java.util.Collectionequals in interface java.util.Listequals in interface java.util.Setequals in class java.util.AbstractListo - The Object to compare to the ArraySet.boolean that is true if the elements of the ArraySet are the same as the specified Object or false if they are not.public int hashCode()
ArraySet, which is the sum of all of the hash codes of the elements of the set. The hash code of a null element is zero.hashCode in interface java.util.CollectionhashCode in interface java.util.ListhashCode in interface java.util.SethashCode in class java.util.AbstractListArraySet.