From: ujihisa@...
Date: 2007-10-15T12:37:28+09:00
Subject: Re: I need some help plz with my ruby project.

class Student
  attr_accessor :courses
  def initialize(hash = {})
    @name    = hash[:name]
    @id      = hash[:id]
    @courses = []

    # if you need, write on some validations here.
  end
end

class Course
  def initialize(hash = {})
    @code  = hash[:name]
    @name  = hash[:id]
    @grade = hash[:grade]

    # if you need, write on some validations here.
  end
end

s1 = Student.new :name => "Eric", :code => "00101"
s1.courses << Course.new(:code  => "22c:021",
                         :name  => "Computer Science I",
                         :grade =>"B-")
p s1.courses.map {|c| c[:grade] }