scala.collection.jcl.Map

class KeySet

[source: scala/collection/jcl/Map.scala]

protected class KeySet
extends Set[K]
Direct Known Subclasses:
MapWrapper.KeySet, SortedMap.KeySet

Method Summary
override def add (k : K) : Boolean
Add will return false if "a" already exists in the set.
override def elements : MutableIterator[K]
Creates a new iterator over all elements contained in this object.
override def has (k : K) : Boolean
override def size : Int
Returns the number of elements in this set.
Methods inherited from Set
++, --, +, -, retain, isEmpty, contains, clear, subsetOf, transform, projection
Methods inherited from Set
update, +=, ++=, ++=, +, ++, incl, -=, --=, --=, -, --, excl, intersect, <<, clone, readOnly
Methods inherited from Set
apply, equals, hashCode, toArray
Methods inherited from Function1
toString, compose, andThen
Methods inherited from Collection
hasAll, addAll, -=, +=
Methods inherited from MutableIterable
remove, removeAll, retainAll, size0
Methods inherited from Collection
stringPrefix
Methods inherited from Iterable
concat, ++, map, flatMap, filter, takeWhile, dropWhile, take, drop, foreach, forall, exists, find, findIndexOf, indexOf, foldLeft, foldRight, /:, :\, reduceLeft, reduceRight, copyToBuffer, sameElements, toList, mkString, mkString, addString, addString, copyToArray, hasDefiniteSize
Methods inherited from AnyRef
getClass, notify, notifyAll, wait, wait, wait, finalize, ==, !=, eq, ne, synchronized
Methods inherited from Any
==, !=, isInstanceOf, asInstanceOf
Method Details
override def size : Int
Returns the number of elements in this set.
Returns
number of set elements.

override def add(k : K) : Boolean
Add will return false if "a" already exists in the set.
Overrides
Set.add

override def elements : MutableIterator[K]
Creates a new iterator over all elements contained in this object.
Returns
the new iterator

override def has(k : K) : Boolean
Returns
true if t is in the collection.