From: Erik Boling <schmode93@...>
Date: 2007-10-02T11:21:08+09:00
Subject: instance variable/ I'm lost

Hello i am new to programming/ ruby but i have had some help from a
cousin and read a book so i have some knowlage of what I'm doing.
Anyways in my free time i was creating a program that tested me on easy
multiplication problems to keep my mind fresh;

puts 'How many problems do you want to solve?'
problems = gets.chomp

5.downto(1) do |x|
  puts "The test will beging #{x} in seconds! "
  sleep 1
end
puts 'Start!'

  def multiply
multiple2 = rand(11)
multiple1 = rand(11S)
  answer = multiple1 * multiple2
puts 'what is ' + multiple1.to_s + ' * ' + multiple2.to_s + ' ?'
  answerp = gets.chomp
  if answer.to_s == answerp.to_s
    puts "good job"
  else puts "You fail!"
  end
end

problems.to_i.times do multiply
end

:
So i was wondering, how can i tally up how many times they answer
correctly. I tried putting in the definition after the if statement
correct + 1, * obviously i made the variable "correct" above* but the
problem is, i cant retrive the variable out of the definition i had
made. which brings me to my question of instance variables. Can't i make
a seperate def and create and instance variable like
def correct
@correct = correct

then in my multiplication def. under the if statement do
correct + 1

then finally at the end do
puts correct
 and that would give me the total correct, but thats not working for me?
i dont know what im doing wrong? I see these instance variable in this
confusing book i just started to read, and it looks like maybe there
needs to be a class?!?!? idk but if someone could help me get this stuff
figured out that would be awesome!
ps: sorry long post :(
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