From: Saji Hameed <saji@...>
Date: 2012-02-09T13:39:36+09:00
Subject: Re: Student needs help with simple loop.

hope that some thing like the following may work for you.

n1, n2 = 0, 0
while n1==0 do
  puts " n1 = "
  n1=gets.chomp.to_i
end

while n2==0 do
  puts " n2 = "
  n2=gets.chomp.to_i
end


puts "you are finsihed"

saji


On Thu, Feb 9, 2012 at 1:17 PM, Clay Tzoucalis
<ctzoucal@students.kennesaw.edu> wrote:
> So I have to create a ruby file for class that asks the individual to
> enter two numbers, which are then put into equations to provide the
> addition, subtraction, multiplication, and division. The trouble I am
> having is when the individual is asked to enter their number they are
> supposed to be unable to enter 0 as a number and if they do it is
> supposed to loop them back to the original question. I can not figure
> out how to do this correctly. Below is my file, so if anyone can show
> and inform me how this is done I would GREATLY appreciate it.
>
>
> class NumberCruncher
>  class Screen
>
>      def cls
>        puts ("\n" * 25)
>      end
>  end
>
>  Console_Screen = Screen.new
>
>  Console_Screen.cls
>
>    puts "Please enter a number now. (Press Enter)"
>       number1 = STDIN.gets
>       number1.chomp!
>
>
>  puts "Please enter a new number now. (Press Enter)"
>        number2 = STDIN.gets
>        number2.chomp!
>
>   Console_Screen.cls
>
>  print "Added first and second number.\n" , (number1.to_i +
> number2.to_i)
>   pause = STDIN.gets
>  Console_Screen.cls
>
>  print "Subtracted second from first number.\n" , (number1.to_i -
> number2.to_i)
>   pause = STDIN.gets
>  Console_Screen.cls
>
>  print "Multiplied first and second number.\n" , (number1.to_i *
> number2.to_i)
>   pause = STDIN.gets
>  Console_Screen.cls
>
>  print "Divided first by second number.\n" , (number1.to_i /
> number2.to_i)
>   pause = STDIN.gets
>  Console_Screen.cls
>
>  puts "You're finished!"
>  end
>
> --
> Posted via http://www.ruby-forum.com/.
>



-- 

Saji N Hameed,
ARC-ENV, Center for Advanced Information Science and Technology,
University of Aizu, Tsuruga, Ikki-machi,
Aizuwakamatsu-shi, Fukushima 965-8580,
Japan

Tel: +81242 37-2736
Fax:+81242 37-2760
 email: saji@u-aizu.ac.jp
 url: http://www.u-aizu.ac.jp
 bib: http://www.researcherid.com/rid/B-9188-2009