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- class Book
- attr_reader :name, :author, :year
- def initialize(name, author, year)
- @name = name
- @author = author
- @year = year
- end
- def full_description
- "Name: #{name}, Author: #{author}, Year: #{year}"
- end
- end
- class Stock
- attr_reader :quantity, :maximum_quantity
- attr_accessor :books
- def initialize(books: [], quantity: 0, maximum_quantity: 10)
- @books = books
- @quantity = quantity
- @maximum_quantity = maximum_quantity
- end
- def <<(book)
- books << book unless crowded
- end
- def crowded
- quantity == maximum_quantity
- end
- def print_books
- books.each do |book|
- puts book.full_description
- end
- end
- end
- book1 = Book.new("Practical Object-Oriented Design in Ruby","Sandi Metz","2012")
- book2 = Book.new("Ruby Under a Microscope","Pat Shaughnessy","2013")
- stock = Stock.new
- stock << book1
- stock << book2
- stock.print_books
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