From: Matt Victorio Date: 2011-02-24T12:38:59+09:00 Subject: How to inhibit the use of letters and allowing just numbers Hello, I started using Ruby few weeks ago and I have a little problem: How do I inhibit the user of using numbers instead of letters? For exemple, I created a program that asks the user his age, but I want the user answer it using only numbers, not letters ('10', not 'ten'). Which command do I use for returning the line 'use just numbers', for exemple? Please, tell me anything, even if it looks 'hard' :P Thank you -- Posted via http://www.ruby-forum.com/.