RUBY Help

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Summary:

this just isn't working...

RUBY Help

2Tie 29 Mar 2009 22:21

i need help! my little brother made this in ruby, and it's havig major issues:

puts "1 = Play the game. 2 = Exit"
one_or_two = gets
if one_or_two == "1"
  puts "How many digits of pi?"
  digits = gets
  if digits <= "2"
    puts "Number too low!"
  end
  if digits >= "12"
    puts "Number too high!"
  end
  if digits == "3"
    puts "3.14"
  end
  if digits == "4"
    puts "3.142"
  end
  if digits == "5"
    puts "3.1416"
  end
  if digits == "6"
    puts "3.14159"
  end
  if digits == "7"
    puts "3.141593"
  end
  if digits == "8"
    puts "3.1415927"
  end
  if digits == "9"
    puts "3.14159265"
  end
  if digits == "10"
    puts "3.141592654"
  end
  if digits == "11"
    puts "3.1415926536"
  end
  if digits == "12"
    puts "3.14159265359"
  end
end
if one_or_two == "2"
  puts "Goodbye!"
end

whenever you execute it, it gets to the first comparison, then epically fails. if you put in "puts one_or_two" at the very end, it dsplays what you think yo put into that variable, but the comparison isn't working. on my father's computer it even says goodbye no matter what you put in. for me, that's not even happening. HELP!

Re: RUBY Help

jnesselr 30 Mar 2009 02:18

Use elseif instead of ending the if satement:
If one_or_two == "1"
Whatever here
elseif one_or_two == "2"
Whatever here
Else
Puts "1 or 2 only"
End

Re: RUBY Help

simplethinker 30 Mar 2009 05:04

I'm not sure what's causing the problem, but… there has got to be a better way to do that. From browsing the Ruby documentation, it looks like this could work for displaying the digits (note: this is just an educated guess based on the documentation):

pi = "3.14159265359"
puts pi.slice(0, 1 + digits.to_i)