Array List Objects

public static void main()
{
    Students gvsu = new Students();

    gvsu.openFile();

    System.out.println( "Course Roster" );
    gvsu.printRoster();

    System.out.println( "\r\nThe highest GPA is: ");
    System.out.println( gvsu.findHighestGrade());

    ArrayList<Student> p = gvsu.probationList();
    System.out.println( "\r\nThe Probation List (GPA < 2.0) " + p.size() + " students.");

    for (Student s:p)
    {
        System.out.println( s.toString() );
    }
}

Input:

Scott,Grissom,123,4.0
Roger,Ferguson,124,2.8
Teresa,Peterman,101,3.7
Derp,Derpson,102,3.9
Derpina,Derpy,103,2.4
Derpey,Derpson,104,1.2
Ben,Dover,101,1.1
Seymour,Butts,103,.52



Output:

Course Roster
Grissom Scott (123) 4.0
Ferguson Roger (124) 2.8
Peterman Teresa (101) 3.7
Derpson Derp (102) 3.9
Derpy Derpina (103) 2.4
Derpson Derpey (104) 1.2
Dover Ben (101) 1.1
Butts Seymour (103) 0.52

The highest GPA is: 
Grissom Scott (123) 4.0

The Probation List (GPA < 2.0) 3 students.
Derpson Derpey (104) 1.2
Dover Ben (101) 1.1
Butts Seymour (103) 0.52