HashSet - Klyn API

HashSet

classin packageklyn.collections

public class HashSet<T> extends Object implements Set<T>:

Object

└ HashSet

All Implemented Interfaces: Set

Hash set implementation.

Unsorted collection of unique elements with average O(1) add/contains/remove. Iteration and indexed access follow the native hash table's internal bucket traversal and have no insertion-order guarantee.

Example:

s = HashSet<String>()
s.add("red")
s.add("blue")
s.add("red")     # duplicate, size stays 2
assert "blue" in s
assert s.count("red") == 1
s.remove("red")

Properties

Modifier and Type	Member	Description
public readonly native property	size `size as ULong`	Number of elements in the set.

Inherited Properties

propertyInherited Properties from Object: type

Constructors

Modifier and Type	Member	Description
public	HashSet `HashSet():`	Creates an empty hash set.
public	HashSet `HashSet(collection as Collection<T>):`	Creates a hash set from a collection.
public	HashSet `HashSet(list as IList<T>):`	Creates a hash set from a read-only list.
public	HashSet `HashSet(source as HashSet<T>):`	Creates a hash set from another hash set.
public	HashSet `HashSet(source as HashSetSync<T>):`	Creates a hash set from a synchronized hash set.

Methods

Modifier and Type	Member	Description
public native	_items `_items() as ArrayList<T>`	Returns the elements in the native hash table's current traversal order.
public native	add `add(item as T) as Void`	Adds an element to the set.
public native	clear `clear() as Void`	Clears all elements.
public native	count `count(item as T) as ULong`	Counts occurrences of the given element in the set.
public	difference `difference(other as HashSet<T>) as HashSet<T>:`	Returns a new set containing elements from this set that are absent from `other`.
public	intersection `intersection(other as HashSet<T>) as HashSet<T>:`	Returns a new set containing elements present in both sets.
public	isSubsetOf `isSubsetOf(other as HashSet<T>) as Boolean:`	Returns true when every element of this set is present in `other`.
public	isSupersetOf `isSupersetOf(other as HashSet<T>) as Boolean:`	Returns true when this set contains every element of `other`.
public native	remove `remove(item as T) as Boolean`	Removes an element from the set.
public	symmetricDifference `symmetricDifference(other as HashSet<T>) as HashSet<T>:`	Returns a new set containing elements present in exactly one of the two sets.
public native	toString `toString() as String`	Returns a string representation of the set.
public	union `union(other as HashSet<T>) as HashSet<T>:`	Returns a new set containing all elements from this set and `other`.

Inherited Methods

methodInherited Methods from Object: deepCopy, fromJson, hash, toDict, toJson, toXml

methodInherited Methods from Set: count

methodInherited Methods from Collection: add, remove, toString

Operators

Modifier and Type	Member	Description
public native	operator in(item as T) as Boolean	Returns true if the set contains the element.

Inherited Operators

operatorInherited Operators from Set: operator in(item as T) as Boolean