Java Trainer Interview Questions and Answers

Collection is a framework that provides an architecture to store and manipulate a group of objects.

• Collection is an interface that extends Iterable interface

• List, Set, and Queue are the main subinterfaces of Collection

• ArrayList, LinkedList, HashSet, TreeSet, PriorityQueue are some of the implementations of Collection

• Collection provides methods like add(), remove(), contains(), size(), etc.

• Collections is a utility class that provides methods like sort(), reverse(), shuffle(), ...read more