Count Vowels in Ruby

Here is a simple program that will ask the user to give a string and then our program will count the number of vowels based on the given string of our user using Ruby as our programming language.

 I am currently accepting programming and web development work kindly contact me in the following email address for further details. Thank you.

My email address are the following jakerpomperada@gmail.com and jakerpomperada@yahoo.com.

My mobile number here in the Philippines is 09173084360.

My telephone number at home here in Bacolod City, Negros Occidental is (034) 4335675.

Sample Program Output

Program Listing

vowels.rb

# vowels.rb

# Written By: Mr. Jake R. Pomperada, MAED-IT

# December 15, 2017

# Tool : Ruby and Sublime Text Editor

# Location : Bacolod City, Negros Occidental Philippines

# method to count the vowels in the given sentence by our user.

def count_vowels(string)

    vowels = 0

    counter = 0

    while counter < string.length do

      if string[counter]=="a" || string[counter]=="e" || string[counter]=="i" || string[counter]=="o" || string[counter]=="u"

        vowels += 1

      end

      counter += 1

    end

    return vowels

end

string_input =""

answer = ""

until answer.downcase == "n" do 

 print "\n\n"

 print "===== COUNT VOWELS IN RUBY ====="

 print "\n\n"

 print "Created by Mr. Jake R. Pomperada"

 print "\n\n"

 print "Give a sentence : "

 string_input = gets.chop

 display_result =count_vowels(string_input.downcase)

print "\n\n"

print "The number of vowels is #{display_result}."

print "\n\n"

 print "Do you want to continue Y/N ? : "

 answer= gets.chop

end  

 print "\n\n"

    print "End of Program"

    print "\n\n"