collections

Question

Which among the four collections makes fastest operations?
A)arraylist
B)hash set
C)tree set
D)linked list

Answer 1

I believe it is depends on the type of the operation. If you need just read ArrayList is better, if you need insert/remove use LinkedList.

Answer 2

In my interview , interviewer said hashset

Answer 3

Again if you check manuals and different articles there no such thing like fastest collection. It depends on type of operation you need to perform, this why there are few types of collection. Did you ask him for explanation why?

Answer 4

I said arraylist.. but he said no hash set.. and I thought ok.. I did not prolong more.

Answer 5

It is sounds strange for me, like asking what is better int or long...