Add juniors, sophomores, and freshmen

[harrisongill]

I tried to go a step further with all HS grades and also printing out the grade at the top of the grade list when run.

[jwo]

This looks great!

Seeing freshman/sophomore/juniors/seniors next to each other has me thinking that we are repeating ourselves. You absolutely did this episode quickly --- since you went beyond, I wonder if you'd like to try re-arranging to this:

grades = {freshman: 9, sophomore: 10, junior: 11, senior: 12) # hashes (see episode 6)

def all_students_for_grade(grade, students)
  grade_value = grades[grade]
  students.select {|s| s.grade == grade_value}.each do |s|
    puts "* #{s}"
  end
end

puts "Freshman"
all_students_for_grade(:freshman, students)

puts "\nSophomore"
all_students_for_grade(:sophomore, students)

puts "\nJunior"
all_students_for_grade(:junior, students)

puts "\nSenior"
all_students_for_grade(:senior, students)

Thoughts? Better or Worse? Anything else you think we could do? (even if you don't know exactly how in Ruby).