The following code shows how to use some string methods.
s = "hello world" puts s.length #=> 11 puts s.reverse! #=> Hello world puts s.reverse #=> dlrow olleH puts s.upcase #=> HELLO WORLD puts s.capitalize #=> Hello world puts s.swapcase #=> hELLO WORLD puts s.downcase #=> hello world puts s.insert(7,"NOT ") #=> hello wNOT orld puts s.squeeze #=> helo wNOT orld puts s.split #=> ["helo", "wNOT", "orld"] # ww w .j a v a 2 s . c o m