# Similar to a switch statement if you've used C/C++/Java, but Ruby's # is a bit more powerful. # Basic value tests num = 5 case num when 1 puts "it's one" when 3 puts "wow, it's three" when 5 puts "five golden rings" end # Ranges num = 25 case num when 1..10 puts "between one and ten" when 20..30 puts "between twenty and thirty" else puts "must be between ten and twenty" end # Regular expressions str = "doe, a deer" case str when /food/ puts "i'm hungry" when /doe/ puts "#{str}, a female deer" end