Imagine wanting to perform a selection sort on a collection of Comparable objects. The collection is an instance of the class Group. a. What private methods would you need? b. Implement a method to...

Imagine wanting to perform a selection sort on a collection of Comparable objects. The collection is an instance of the class Group.

a. What private methods would you need?

b. Implement a method to perform a selection sort on the objects in an instance of Group.

 c. Using Big Oh notation, describe the time efficiency of your method.