Which is faster array or arraylist?
Is arraylist synchronized?
How do you sort an array in decreasing order?
What is an example of an algorithm?
Which is faster quick sort or merge sort?
Explain binary search tree?
In RDBMS, what is the efficient data structure used in the internal storage representation?
What is the use of threaded binary tree?
What is the top of a stack?
Define balance factor of a node in avl tree?
Which of the collections allows null as the key?
Explain about set and their types in a collection?
Define a queue?