Does arraylist have index?
How do you sort an array in descending order?
Name few classes that implement collection interface?
Why is selection sort used?
Write an algorithm to check if there is a loop in a doubly linked list.
Give us a program to reverse a linked list.
What are hashmaps good for?
what is Linked lists?
What is complete binary tree in data structure?
Is null allowed in list?
What is an externalizable interface?
Can nsarray contain nil?
Tell me why can't constant values be used to define an array's initial size