What is linked hash set?
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A lot of data structures related programs related to only trees and graphs, like the diameter of a tree, removing the loops in a graph etc.
What are the advantage of collection classes over arrays?
Calculate the efficiency of sequential search?
How many types of priority queue are there?
Which sorting is best and why?
How do you sort elements in an arraylist?
Differentiate between hashset and hashmap.
If we add enum constants to a sorted collection ( treemap , treeset ), what will be the order in which they will be maintained?
Does arraylist allow null values?
What is list data structure?
Define a binary tree?
What is time complexity of quick sort?