How do you sort an arraylist in descending order?
What is the use of substring?
Can a tree be empty?
Is arraylist a list?
Is hashmap sorted?
Name some applications which use linked lists.
Mention one advantage and disadvantage of using quadratic probing?
Is hashmap keyset ordered?
How do you find the second largest element in an array of integers?
Which is the parent class of list<e> class?
Differentiate between iterator and enumeration.
If you are given a choice to use either arraylist and linkedlist, which one would you use and why?
Write a Program for Reverse a linked list.