Can treeset contain duplicates?
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Is red black tree balanced?
What is doubly linked list?
What is an externalizable interface?
What is merge sort and how it works?
What is time complexity of hashmap?
Calculate the address of a random element present in a 2d array, given base address as ba.
Which sorting is best?
What is a class user?
What is the need for extendible hashing?
Which is faster hashmap or hashtable?
Can we use Generics with the array?
What happens if we put a key object in a hashmap which exists?