Displaying the Balance

#Codecademy sample solution

class Account
    attr_reader :name
    attr_reader :balance

def initialize(name, balance=100)
@name = name
@balance = balance
end

private

def pin
@pin = 1234
end

def pin_error
return "Access denied: incorrect PIN."
end

public

def display_balance(pin_number)
if pin_number === pin
puts "Balance: $#{@balance}."
else
puts pin_error
end
end
end