Peter Zotov
4/26/2009 8:03:00 PM
Mike West wrote:
> Hello all,
>
> I am a complete novice to programming. I have chosen Ruby as my first
> language.
>
> I am attempting to follow some tutorials in a book I have. However, I am
> running into some errors, and can not figure out why. Can you please
> guide me?
You cannot simply add strings and numbers together; you must convert
number to string first.
Try this code:
puts (2+4).to_s + ' is the sum of 2+4.'
and
puts 'Hello, what is your favorite number?'
number = gets.chomp
better = number.to_i+1
puts number.to_s + '?? Don\t you know that ' + better.to_s + 'is a superior
selection?'
But the right way to do this is to use expression inlining, such as there:
puts "#{2+4} is the sum of 2+4."
or
puts "#{number}?? Don\t you know that #{better} is a superior
selection?"
It does .to_s implicitly. Notice the double quotes, it won't work with single.
WBR, Peter Zotov