Exercise 12. Prompting People for Numbers

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You may have noticed in Exercise 11 that you were getting only strings from the user. How do you get numbers? Type this code in to find out how.

ex12.rb

 1    print "Give me a number: "  2    number = gets.chomp.to_i  3  4    bigger = number * 100  5    puts "A bigger number is #{bigger}."  6  7    print "Give me another number: "  8    another = gets.chomp  9    number = another.to_i 10 11    smaller = number / 100 12    puts "A smaller number is #{smaller}."

What You Should See

Exercise 12 Session

$ ruby ex12.rb Give me a number: 10 A bigger ...

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