ClassListTester.java

Roster.java

Student.java

ClassListTester.java $$ Student.java

import Java.utll. Arraylist;

$2$

$3$ public class Roster

$\{$

$5//$ Implement the student ArrayList

$//$ or copy from previous exercise

private static ArrayList$==i7\mathrm{.}3,7\mathrm{.}4$