i have a merged hash table and it is having around 4351 distinct keys and its relevant values,but i don't want to specify its each and every key for fetching values,i want to directly collect all the values only, how do i handle this?
Note:all the values are distinct 100% ,thats why i want to fetch blindly those data for further process
Take a look at Hashtable#values()
:
public Collection<V> values()
Returns a Collection view of the values contained in this map. The collection is backed by the map, so changes to the map are reflected in the collection, and vice-versa. If the map is modified while an iteration over the collection is in progress (except through the iterator's own remove operation), the results of the iteration are undefined. The collection supports element removal, which removes the corresponding mapping from the map, via the Iterator.remove, Collection.remove, removeAll, retainAll and clear operations. It does not support the add or addAll operations.
Specified by:
values in interface Map
Returns:
a collection view of the values contained in this map
Since:
1.2
you can collect all the Values in a ArrayList Eg:
if you have like
HashTable <Object,Type> hm;
then you can use
ArrayList<Type> al= new ArrayList<Type>(hm.values());
all your values are now inside array list
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