gistfile1.txt

File.open('homeworkdata.txt', 'r') do |f|
  while line = f.gets
    lines = line.gsub(/,/, ' ')
    grades = Grade.new(*lines)
    grade_arr << grades
  end
end
***********************************************
File.open('homeworkdata.txt', 'r') do |f|
  while line = f.gets
    lines = [line.gsub(/,/, ' ')]
    grades = Grade.new(*lines)
    grade_arr << grades
  end
end

grade.rb:8:in `initialize': wrong number of arguments (1 for 2) (ArgumentError)