gistfile1.txt

class Player

  def initialize(name, health = 100, rank = 1)
    @name = name.capitalize
    @health = health
    @rank = rank
  end

  def say_hello
    "#{@name} has #{@health} health and #{@rank} rank."
  end
  def rank_up
    @rank += 1
    "Ranked up! #{@name} now has a rank of #{@rank}!"
  end
end

player1 = Player.new("joe")
player2 = Player.new("mike")

puts player2.say_hello.rank_up

player2.say_hello
"mike has 100 health and 1 rank."

player2.say_hello.rank_up
-> (player2.say_hello).rank_up
-> ("mike has 100 health and 1 rank.").rank_up

A string doesn't define the rank_up method