exception.rb

# handling exception

#======save page into html=======
require 'open-uri'
# web_page = open("http://indoexchanger.co.id/home")
# output = File.open("index.html", "w")
# while line = web_page.gets
#   output.puts line
# end
# output.close

#page =gets.chomp.to_s
# page ="inde"
# file_name = "#{page}.php"
# web_page = open("http://muhammadyana.web.id/#{page}")
# output = File.open(file_name, "w")
# begin
#   while line = web_page.gets
#     output.puts line
#
#   end
#   output.close
# rescue Exception
#   STDEERR.puts "Failed to download #{page}: #{$!}"
#   output.close
#   File.delete(file_name)
#   raise
# end

# begin
#   eval string
# rescue SyntaxError, NameError => boom
#   print "String doesnt compile : " + boom
# rescue
#   print "Error running script : " + bang
# end

i = 10
name = "Joh"

raise "Missing word" if name.nil?

if i >= name.size
  raise IndexError, "#{i} >= size (#{name.size})"
end

raise ArgumentError, "Name too big", caller[1..-1]

def prompt_and_get(prompt)
  print prompt
  res = readline.chomp
  throw :quit_requested if res == "!"
  res
end

catch :quit_requested do
  name = prompt_and_get("Name : ")
  age = prompt_and_get("Age: ")
  sex = prompt_and_get("Sex : ")
end