brutil
Class AbstractSet

java.lang.Object
  |
  +--brutil.AbstractListing
        |
        +--brutil.AbstractMultiSet
              |
              +--brutil.AbstractSet

All Implemented Interfaces:

Collection, MultiSet, Set

Direct Known Subclasses:

AbstractSortedList, ArraySet, LinkedSet

public abstract class AbstractSet

extends AbstractMultiSet

implements Set

Fields inherited from class brutil.AbstractListing

list

Constructor Summary

AbstractSet()

Method Summary

java.lang.Object

add(java.lang.Object elt) Add the specified object to the Set.

Methods inherited from class brutil.AbstractMultiSet

contains, find, iterator, numOccurences, remove, removeAll

Methods inherited from class brutil.AbstractListing

clear, isEmpty, listFactory, size

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface brutil.Set

contains, find, isEmpty, iterator, remove

Methods inherited from interface brutil.Collection

clear, size

Constructor Detail

AbstractSet

public AbstractSet()

Method Detail

add

public java.lang.Object add(java.lang.Object elt)

Add the specified object to the Set. Unless the implementing class is also a MultiSet, there may only be one instance of the object in the set.

Specified by:

add in interface Set

Overrides:

add in class AbstractMultiSet

Parameters:

elt - The object to add to the Set.

Returns:

Object if the item was previously in the set, null otherwise.