What is comparator interface used for?
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Define balanced trees?
Does linkedhashset allow duplicates?
What are arrays used for?
Does treemap allow duplicate keys?
Explain binary representation?
What are different methods of collision resolution in hashing.
Explain about the types of linked lists
How would you implement two stacks using a single array?
What data type is enum?
Why do we use sorting?
What is the data structures used to perform recursion?
State the properties of a binary tree?