Which collection class is thread safe?
For which header list, the last node contains the null pointer?
What is garbage collection in data structure?
In what data structures are pointers applied?
Is arraylist synchronized?
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.
How to find the missing element in integer array of 1 to 7?
What are binary search and fibonacci search?
How do you use merge sort?
What is a postfix expression?
What is the slowest sorting algorithm?
why boundary tag representation is used?
What is difference between hashmap and map?