What is difference between array and string?
Explain what are the methods available in storing sequential files ?
Differentiate between hashset and hashmap.
What is a hashers run?
How do you create a tree diagram?
Which sorting is best?
What are the average and worst time complexity in a sorted binary tree is
Find duplicates in infinite range. Which data structure to be used to give efficient solution?
How many types of data structure are there?
What is link list in data structure?
What is binary search tree and explain its time complexity?
What is the difference between hashset and hashmap?
What is entryset method in map?