require "date"
class BookInfo
def initialize(title,author,page,publish_date)
@title = title
@author = author
@page = page
@publish_date = publish_date
end
attr_accessor :title, :author, :page, :publish_date
def to_s
"#{title},#{author},#{page},#{publish_date}"
end
def toFormattedString(sep = "\n")
"書籍名:#{@title}#{sep}著者名:#{@author}#{sep}ページ数:#{@page}ページ#{sep}
発刊日:#{@publish_date}#{sep}"
end
end

class BookInfoManager
def initialize
@book_infos = {}
end
def setUp
@book_infos["Yamada2005"] = BookInfo.new(
"モバイルボヘミアン",
"加味真",
618,
Date.new(2018,6,18)
)
@book_infos["ooba2006"] = BookInfo.new(
"読書",
"加味真",
619,
Date.new(2017,6,18)
)
end
def addBookInfo
book_info = BookInfo.new("","",0,Date.new)
print "\n"
print "キー:"
key = gets.chomp
print "書籍名:"
book_info.title = gets.chomp
print "著者名:"
book_info.author = gets.chomp
print "ページ数:"
book_info.page = gets.chomp.to_i
print "発刊年:"
year = gets.chomp.to_i
print "発刊月:"
month = gets.chomp.to_i
print "発刊日:"
day = gets.chomp.to_i
boook_info.publish_date = Date.new(yaer,month,day)
end
def listAllBookInfos
puts "\n---------------------"
@book_infos.each {
|key,value|
print info.toFormattedString
puts "\n-------------------------"
}
end
def run
while true do
print "
1.蔵書データの登録
2.蔵書データの表示
9.終了
　番号を選んでください(1,2,9):"
　
　num = gets.chomp
　case num
　when "1"
　 addBookInfo
　when "2"
　 listAllBookInfos
　when "9"
　
　end
end
end
end
book_info_manager = BookInfoManager.new
book_info_manager.setUp
book_info_manager.run