Algorithm and data structure examples in Java.
Key value paired data structure is provided by the Map interface so that for mapping the keys to values. Keys are unique which are used for retrieval of the values, from Map.
Key features are as following: Key value repair is used for storage of all values. Key is used for the retrieval.When Map doesn’t contain any element, various methods throw the “NoSuchElementException”.When compatibility of element is not present with map elements, ClassCastException gets