Can we remove element from arraylist while iterating?
How do you determine if a binary tree is height balanced?
How does shell sort work?
Who invented quicksort?
What is sorting and its types?
How do you sort large data?
Which collection class is thread safe?
Can a null element added to a treeset or hashset?
What is the family trees and connection by clause?
Differentiate stack from array?
what is the difference between singly and doubly linked lists?
What is top in stack?
State the difference between stacks and linked lists?
What are threaded binary trees?
What do you know about the big-o notation and can you give some examples with respect to different data structures?