Interface Multiset<T>

Type Parameters:

T - element type

All Known Implementing Classes:

DelegatingMultiset, HashMultiset, TreeMultiset

public interface Multiset<T>

Basic Multiset. (Transitional interface)

Method Summary

Modifier and Type	Method	Description
void	add(T element)	Add the element to the multiset
void	add(T element, long count)	Add the element to the multiset
long	count(T element)	Count the elements in multiset
Collection<Map.Entry<T,Long>>	entrySet()	Get all associations of the multiset.
boolean	isEmpty()	Answers if Multiset is empty
Collection<T>	keys()	Answers the collection of keys
long	size()	Answers the size of multiset.

Method Details

add

void add(T element)

Add the element to the multiset

Parameters:

element - element to add

add

void add(T element,
 long count)

Add the element to the multiset

Parameters:

element - element to add

count - number of elements to add

count

long count(T element)

Count the elements in multiset

Parameters:

element - element

Returns:

number of matching elements in the set; zero, if no elements

entrySet

Collection<Map.Entry<T,Long>> entrySet()

Get all associations of the multiset. Each entry provides a key and a count of that element.

Returns:

entry set of the multiset

isEmpty

boolean isEmpty()

Answers if Multiset is empty

Returns:

true, if set is empty

size

long size()

Answers the size of multiset. Equivalent to number of elements, counting duplications.

Returns:

number of elements

keys

Collection<T> keys()

Answers the collection of keys

Returns:

the collections of keys