Ruby_Ex-1

# Question-  Occurence - Hash
#Count the ocurrences of various alphabet letters in an input string and store it in hash.

def alphabet_count_and_store_in_hash(hash, input_string)
  input_string.each_char { |char| hash[ char ] += 1}
  hash.delete_if {|k,v| k !~ /^[a-zA-Z]+$/ }
end

# Main
hash = Hash.new(0)
p "Enter the string"
input_string = gets.chomp

alphabet_count_and_store_in_hash(hash, input_string)
hash.each {|key| p key}