|Non-Synchronized. Fast.||Synchronized. Slow|
|Allows one null key and any number of null values.||Hashtable doesn’t allow null keys and null values.|
|Use LinkedHashMap to maintains the insertion order.
TreeMap to sort mappings based on the ascending order of keys.
|Hashtable doesn’t guarantee any kind of order.|
|Iterator in HashMap is fail-fast.||Enumerator in Hashtable is not fail-fast.|
Overview RestTemplate reduces boilerplate code and enforces RESTful principles. In this post, we will discuss different ways in which we can use RestTemplate GET call Get entry point has two methods POST call Post entry Read more…