HashMap and LinkedHashMap

[S Majumder]

Hi exery body what is the difference between HashMap & LinkedHashMap ?

regards,
S

[Muhammad Khojaye]

Please search. Surely, you will get many valuable replies.

[Jitendra Takalkar]

HashMap is an implementation of Map interface. LinkedHashMap which extends HashMap i.e. implementation of Map interface. The differnce between the HashMap and LinkedHashMap is in the way of implementation of Hash table.

HashMap:
no guarantees as to the order of the map

LinkedHashMap:
it maintains a doubly-linked list running through all of its entries. This linked list defines the iteration ordering.