arrays.rb

beatles = ["john", "ringo", "ringo", "seb"]
# beatles = [1, 2, 3, 4, 5, 6, 3]
# index =>   0        1       2
#
# p beatles

# beatles[2] = "george"

# p beatles

# beatles.unshift("george")

# puts beatles.size
# #
# beatles.delete_at(2)

# puts beatles.size

beatles.each do |beatle|
  unless beatle == "ringo"
    puts "#{beatle} is in the Beatles"
  else
    puts "#{beatle} is sucks"
  end
end

# for beatle in beatles
#  puts "#{beatle} is in the Beatles"
# end

flipcoin.rb

computer = ['cara', 'coroa'].sample

puts "cara ou coroa?"
response = gets.chomp

result = response == computer ? "ganhou" : "perdeu"

puts "Voce #{result} "

inline_if.rb

puts "Choose a number?"
number = gets.chomp.to_i

puts "The number #{number} is even" if number.even?
puts "The number #{number} is odd" if number.odd?

program_case.rb

puts "What do you want to do (read|write|update)?"
action = gets.chomp

response = case action
  when "read" then "READING"
  when "write" then "WRITING"
  when "update" then "UPDATING"
  else
    "Unkn"
end

p response

recap.rb

puts "Wagon".class

if nil
  puts 1.class

  puts 1.2.class

  puts true.class

  puts false.class

  puts [1, 2, 3, 4].class

  puts (1..6).class
end

rightprice.rb

random_number = rand(5)

while true
  puts "Choose a number (0..4)"
  num = gets.chomp.to_i
  break if num == random_number
end

puts "You won"

vote.rb

puts "How old are you?"
age = gets.chomp.to_i

can_vote = (age >= 18) ? "You can vote" : "You cannot vote"

puts can_vote

worktime.rb

puts "Que horas sao?"

hora = gets.chomp.to_i

morning_conditional = (hora > 9 && hora < 12)
afternoon_conditional = (hora > 14 && hora < 18)

cond = morning_conditional || afternoon_conditional

if cond
  puts "Ta aberta"
else
  puts "Ta fechada"
end