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|Ans. Using Collections.reverseOrder()|
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|Difference between HashMap and Hashtable?|
|Difference between TreeMap and HashMap ?|
|Can you provide some implementation of a Dictionary having large number of words ?|
|What is a ConcurrentHashMap ?|
| Collections.sort can only be performed on ..|
d. Any Collection implementation
|How is Hashmap internally implemented in Java ?|
| What is the difference between List, Set and Map ?|
What are the different Java Collections Interfaces ?
|Can we use null as a key for a map collection ?|
| Which of the following collections stores its elements in insertion Order ? |
|Which of the following doesn't extend Collection interface ?|