updated from other gist

gistfile1.txt

class Person
attr_accessor :name, :age

	def initialize(name = nil, age = nil)
 		@name = name
 		@age = age
 	end

 	def get_name_from_user
 		if @name.nil?
 			puts "Hello, what is your name?"
 			@name = gets.chomp
 		end
 		@name
 	end
 		
 	def get_age_from_user
 		if @age.nil?
 			puts "How old are you?"
 			@age = gets.chomp.to_i
 		end
 		@age
 	end
	
 	def greeting
 		puts "Hello #{@name}, who appears to be #{@age} years old!"
 	end
end

darin = Person.new()
darin.get_name_from_user
darin.get_age_from_user
darin.greeting

trevor = Person.new("Trevor", 25)
trevor.greeting