Class OrderedHashSet<T>

  • All Implemented Interfaces:
    Serializable, Cloneable, Iterable, Collection, Set

    public class OrderedHashSet<T>
    extends HashSet
    A HashMap that remembers the order that the elements were added. You can alter the ith element with set(i,value) too :) Unique list. I need the replace/set-element-i functionality so I'm subclassing OrderedHashSet.
    See Also:
    Serialized Form
    • Field Detail

      • elements

        protected List<T> elements
        Track the elements as they are added to the set
    • Constructor Detail

      • OrderedHashSet

        public OrderedHashSet()
    • Method Detail

      • get

        public T get​(int i)
      • set

        public T set​(int i,
                     T value)
        Replace an existing value with a new value; updates the element list and the hash table, but not the key as that has not changed.
      • add

        public boolean add​(Object value)
        Add a value to list; keep in hashtable for consistency also; Key is object itself. Good for say asking if a certain string is in a list of strings.
        Specified by:
        add in interface Collection<T>
        Specified by:
        add in interface Set<T>
        Overrides:
        add in class HashSet
      • elements

        public List<T> elements()
        Return the List holding list of table elements. Note that you are NOT getting a copy so don't write to the list.