Does arraylist have a tostring?
Will this code give error if I try to add two heterogeneous elements in the arraylist? And why?
What is the complexity of bubble sort?
Which data structure is needed to convert infix notations to post fix notations?
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 is advantage and disadvantage of linked list?
Name few classes that implement collection interface?
What is difference between set and map?
What are different types of linked lists?
What is the best data structure and algorithm to implement cache?
Which programming language is best for data structures?
How would you reverse the characters of an array?
Why is bubble sort stable?