# Print the string "Hello World." To start off, we're going to # output the double-quoted value. This will evaluate the string # for any embedded variables. puts "Hello World" # Demonstrate the embedded variable behavior. message = 'Hello World' puts "#{message}" # Print the string 'Hello World.' When using single quotes, the # string will be treated as a literal; that is, no evaluation of # the string will take place. puts 'Hello World' # As a final approach, we're going to remove some of the "syntactic # sugar" and fall back on a more tradional look and feel. puts( "Hello World" ); # There is also a "print" method will will print to the standard # output (like puts), but will not append any new line. print "Hello World\n"