Java Map Interface

• 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.