$9\mathrm{.}20$ LAB: Print student roster $($EO$)$

Complete the Course class by implementing the printRoster$()$ method, which outputs a list of all students enrolled in a course and also the total number of students in the course.

Given classes:

Class Course represents a course, which contains an ArrayList of Student objects as a course roster. $($Type your code in here$)$

Class Student represents a classroom student, which has three fields: first name, last name, and GPA. $($Hint: toString$()$ returns a String representation of the Student object.$)$

Ex: If the following students and their GPA values are added to a course:

Henry Cabot with $3\mathrm{.}5$ GPA

Brenda Stern with $2\mathrm{.}0$ GPA

Jane Flynn with $3\mathrm{.}9$ GPA

Lynda Robison with $3\mathrm{.}2$ GPA

then the program output is:

Henry Cabot $($GPA: $3\mathrm{.}5)$

Brenda Stern $($GPA: $2\mathrm{.}0)$

Jane Flynn $($GPA: $3\mathrm{.}9)$

Lynda Robison $($GPA: $3\mathrm{.}2)$

Students: $4$