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Showing posts with label java Map interface. Show all posts
Showing posts with label java Map interface. Show all posts

  • Java Map interface represents the mapping between unique keys to values.
  • Map can not hold duplicate values.
  • In Map interface, Each key can map at most one value.
  • Each Map interface provides three different collection views. Using which you can view map's content as a set of keys, collection of values and set of key-value mappings.
  • Map will helps you when you wants to search, update or delete elements based on it's key.
  • The map interface is implemented by different java classes like HashTable, HashMap and TreeMap.