Registrar

The Registrar class is responsible to support the enrolment of students. This class maintains the student body as a collection of Student objects. It supports the ability to find and remove students, switch students to another program, and get the number of students enrolled in a specific program. Code the following methods to complete the Registrar class.

• Add() – This method takes the supplied Person information as well as the program of study to create a new Student, adding them to the collection of students in the student body. It returns the student Id for the new enrolment.
• FindStudent() – This method searches the student body for a student with a matching Id.
• RemoveStudent() – This method searches the student body for a student with a matching Id and removes them from the collection, if found.
• GetProgramEnrollment() – This method searches the collection of students to find out how many are enrolled in a particular program. Validate the Program name before performing the search.