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|Java - Interview Questions and Answers|
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|Like Discuss Correct / Improve hashmap collections hashmap internal implementation Veritas Sophos Salesforce United Health Group (UHG) Priceline.com Roposo virtusa polaris Tata Consultancy (TCS) Hexaware Technologies Shiksha Infotech Synechron Anand Rathi Virtusa CenturyLink Kasmo Cloud Solutions Dark Horse Deloitte conduent expert   frequent|
|Difference between TreeMap and HashMap ?|
|Difference between HashMap and Hashtable?|
|Can you provide some implementation of a Dictionary having large number of words ?|
| Which of the following collections stores its elements in insertion Order ? |
|Why HashTable has been deprecated ?|
|Can we use null as a key for a map collection ?|
|Difference between Map and HashMap ?|
|Can we add duplicate keys in a HashMap ? What will happen if we attempt to add duplicate values ?|
|Which of the following collection maintain its elements in Natural Sorted order ?|
|If we try to add duplicate key to the HashMap, What will happen ?|