(Solved) : Package Collmapset Implement New Class Mapset Extends Abstractmap Implements Iterable K Re Q35924640 . . . .

In a package coll.MapSet, implement a new class MapSet<K,V> that extends AbstractMap<K, HashSet<V>> andimplements Iterable<V> where K represents a generic key, andV represents a generic value:

public class MapSet<K, V> extends AbstractMap<K, HashSet<V>> implements Iterable<V>

The purpose of this class is to store a dictionary of keys K toHashSet<V> objects.

Methods

Only three methods are required, but you may choose to addadditional helper methods.

addValue

Implement addValue such that calling this method adds the givenvalue to the HashSet associated with the given key. This methodmust have the following signature:

public void addValue(K, V)

iterator

Implement the iterator such that only values V are traversed.Values are traversed first in descending