What are all the classes and interfaces that are available in the collections?
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Does hashset allow duplicates?
Define avl tree?
Given M x N matrix with sorted elements row wise and column wise, find elements?
State the different types of linked lists?
What is rule regarding overriding equals and hascode method?
How does selection sort work?
write a code for Implementation of stack and queues.
Define depth and height of a tree?
What will happen if an array goes out of bounds?
Write the algorithm for converting infix expression to postfix expression?
Can we add duplicate keys in a hashmap? What will happen if we attempt to add duplicate values?
Define parent node?