Execute Ruby Online

4)	Can you vote?

print "Let's check your age: "
age = Integer(gets)

def can_you_vote?(age)
   if age >= 18
    puts "True"  
     else
      puts "False"
   end
end

can_you_vote?(age)
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5)	EvenNumber 

print "Choose a number: "
num = gets

def even_number(num)
 for num in 50..90 
  if num.even?   
   puts num
    else ()
  end
end

even_number(num)
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6)	Age next year

print "What's your age today ?"
age = gets

def next_year(age)
  puts "Next year I'll be #{age + 1} years old"
end

next_year(age)
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7)	Playlist Array

my_array = ["Hotel California", "Bohemian Rhapsody", "Stairway To Heaven"]

print "Your favorite song?"
song = String(gets)

def add_song_to_playlist(song)
    my_array = ["Hotel California", "Bohemian Rhapsody", "Stairway To 
    Heaven"] << song  
    puts my_array
end

add_song_to_playlist(song)

#my_array << song was not working, the other method i put was quicker, there are others possibilities but lack of time.
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8) Odd or event ?

print "Choose a number"
num = Integer(gets)

def odd_or_even(num)
    puts "even" if num.even?
    puts "odd" if num.odd?
end

odd_or_even(num)
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9) Palindrome Word

print "Write a single word please here : "
word = String(gets)

def palindrome?(word)
  word.downcase!
    unless !word.include? " "
      puts "Write a single word and run again the program !"
       else
        puts "True" if word == word.reverse
         puts "False" if word != word.reverse
    end
end

palindrome?(word)

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