Explain binary search tree?
Does hashmap allow null keys?
Are dictionaries mutable?
What is sorted list in data structure?
How to sort an Array?
What is collections singletonmap?
Is hashmap an array?
What do you mean by 2-3-4 tree?
Define a linear and non linear data structure.
Differentiate between collection and collections.
Write the algorithm for converting infix expression to postfix expression?
why do tree always takes o(log n) time?
What is linear and non linear structure?