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require "#{Dir.pwd}/Book.rb" class BookManager def initialize() @books = [] end def addBook(author, title, isbn, pubYear, area, price) @books.push(Book.new(author, title, isbn, pubYear, area, price)) end def delBook(isbn) @books.delete_if { |b| b.isbn == isbn } end def modBookAuthor(isbn, newAuthor) @books.select { |book| book.isbn.eql? isbn }.author = newAuthor end def modBookTitle(isbn, newTitle) @books.select { |book| book.isbn.eql? isbn }.title = newTitle end end
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