Question

what is the difference between a collection and set give reason to support your answer​

Answer 1

Answer:

collection is a group of things which is collected like a collection of tickets.

set means a group of something like set of books

Answer 2

The practical difference is that Set enforces the set logic, i.e. no duplicates and unordered, while Collection does not. So if you need a Collection and you have no particular requirement for avoiding duplicates then use a Collection. If you have the requirement for Set then use Set. Generally use the highest interface possibble