Ruby Case statements

Some Ruby Case statement tips taken from the following article.

http://www.skorks.com/2009/08/how-a-ruby-case-statement-works-and-what-you-can-do-with-it/


Normal:

print "Enter your grade: "
grade = gets.chomp
case grade
when "A"
puts 'Well done!'
when "B"
puts 'Try harder!'
when "C"
puts 'You need help!!!'
else
puts "You just making it up!"
end

Multi-value:

print "Enter your grade: "
grade = gets.chomp
case grade
when "A", "B"
puts 'You pretty smart!'
when "C", "D"
puts 'You pretty dumb!!'
else
puts "You can't even use a computer!"
end

Regex:

print "Enter a string: "
some_string = gets.chomp
case
when some_string.match(/\d/)
puts 'String has numbers'
when some_string.match(/[a-zA-Z]/)
puts 'String has letters'
else
puts 'String has no numbers or letters'
end