Why is hashmap faster than arraylist?
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What is the difference between adt and data structure?
Define 2-3 tree?
How does quick sort work?
Is hashmap fail safe?
How to create an Array?
create an singly linked lists and reverse the lists by interchanging the links and not the data?
Define a Deque?
Find duplicates in infinite range. Which data structure to be used to give efficient solution?
What is bubble sort?
Write program for Bubble Sort ?
What are different types of linked lists?
what is a balanced tree.