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Same common question what is Map,Set,HashMap,List????
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Answer Posted / punit pannu
collection API:- Collection is a interface which contains three sub-interfaces list set and queue sub-interfaces.
1.List sub-interface: it contains three concrete classes
Arraylist
Vector and
Linkedlist
2. Set sub-interface:- it contains two classes
HashSet
LinkedHashSet
and one interface- SortedSet which contains one concrete
class - TreeSet
3. Map interface: it contains three concrete classes
HashMap
HashTable
LinkedHashMap
and one sub-interface
SortedMap
which contains one concrete class
TreeMap.
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