ProgEx_8_25_14

# A simple exercise in Ruby for substituting X for E in the alphabet
# and using nested loops to print each letter.
# Make sure you have Ruby 1.9 or above installed
# then to run simply type ruby then the file name

alpha = ('A'..'Z').to_a
alpha.to_s
i = 0
while i < alpha.length do
	count = 0
	while count <= i do
		if alpha[count] == 'E'
			print 'X'
		else
		print "#{alpha[count]}"
		end
		count += 1
	end
	puts
	i += 1
end