Ruby Check Week Two

How this works

In this repo, there's four ruby files. Here's what's in each of them:

Person.rb - This contains the root Person class. The Person class accepts in a name and an age, and then defines a to_s method that prints the name and the age.
Student.rb - This contains the Student class. The Student class inherits all methods from the Person class (meaning it also has a name and an age, as well as a to_s method). It also accepts in a teacher variable in the initialize method, which is expected to be a Teacher object. It stores the teacher variable in a instance variable, and then runs the add_student method on teacher. It also has a print_classmates method that runs print_students on teacher.
Teacher.rb - This contains the Teacher class. It inherits from Person as well, meaning it inherits all of the methods and instance variables from the Person class. It also sets up a students instance variable that's an array of all the teacher's students. The add_student method adds a student to this array. The print_students method prints all of the teacher's students.
main.rb - This contains some test code that creates a Teacher object and gives them a bunch of Students.

Check out the main.rb file. Try to figure out how it works (don't worry about the weird code with the name variable).
Try running the print_students method on the professor variable. See what that outputs.
Create a delete_students method on the Teacher class that deletes all students in the students array (hint: you can just set the students variable equal to an empty array).
Create a students_names method on the Teacher class that returns an array of all of the students' names.
Create a reverse_name on the Person class that returns the name variable reversed (HINT: use the .reverse! method on the string). Modify your student_names method so that it returns reverse_name instead of name.