Map_Logics.htm
Objectives : Introducing Map Intgerface.
  • java.util
    Interface Map<Key,Values>
  • sub Interfaces:
    • Bindings,
    • ConcurrentMap<K,V>,
    • ConcurrentNavigableMap<K,V>,
    • LogicalMessageContext,
    • MessageContext,
    • NavigableMap<K,V>,
    •  SOAPMessageContext,
    • SortedMap<K,V>
  • Implementing Classes:
    • AbstractMap,
    •  Attributes,
    • AuthProvider,
    • ConcurrentHashMap,
    •  ConcurrentSkipListMap,
    •  EnumMap,
    •  HashMap,
    • Hashtable,
    • IdentityHashMap,
    •  LinkedHashMap,
    •  PrinterStateReasons,
    • Properties,
    • Provider,
    • RenderingHints,
    • SimpleBindings,
    •  TabularDataSupport,
    • TreeMap,
    • UIDefaults,
    • WeakHashMap
 
HashTable is a Data Structure to store information using two features , "key" and "value" , where we map key to value. It offers fast insertion an searching.
  • key ="Name"
  • value = 34

 
The image below is not mine collected from internet , regards to the contributor.

Set :