Is it possible to store null key and null values in a hashmap?
Calculate the address of a random element present in a 2d array, given base address as ba.
What are the tasks performed while traversing a binary tree?
Why is hashmap faster?
What is data structure definition?
What is 2 dimensional linked list?
Minimum number of queues needed to implement the priority queue?
Differentiate between hashmap and treemap.
What is the difference between arraylist and hashmap?
Is hashmap part of collection?
When will you sort an array of pointers to list elements, rather than sorting the elements themselves?
How do arrays work?
Can arraylist be null?