Sort One of the most common needs with collections is sorting. Java has long had a built-in Arrays.sort method, and Collections.sort allows for sorting by natural order or using a custom comparator.

Generics in Java programming Why use generics? How to use generics for type safety Generics in the Java Collections Framework Examples of generic types in Java Raw types vs. generics Why use generics?

Collection in Java represents a single unit of the group. Using Java collection you can perform all the operations on the data like searching, sorting, inserting, manipulation, deletion, etc.