data_types2.rb

##Ex. 1
#Iterate, display data correspondingly

beatles = [
  {
    name: nil,
    nickname: "The Smart One"
  },
  {
    name: nil,
    nickname: "The Shy One"
  },
  {
    name: nil,
    nickname: "The Cute One"
    },
  {
    name: nil,
    nickname: "The Quiet One"
  }
]
name = nil

beatles.each do |member|
# case-switch statement
case member[:nickname]
  when "The Smart One"
    member[:name] = "John Lennon"

  when "The Shy One"
    member[:name] = "George Harrison"

  when "The Cute One"
    member[:name] = "Paul McCartney"

  when "The Quiet One"
    member[:name]  = "Ringo Starr"

end
end
beatles.each do |member|
  puts "Hi, I'm #{member[:name]}. I'm ''#{member[:nickname]}''"
end

#___________________________________________________________

##Ex.2
#Simple Greeting 
puts"What's your name?"

def say_hello()
  puts"What's your name?"
  name = gets.chomp.to_s.upcase.strip
  puts"Hello, #{name}"
end
  puts"Hello, #{name}"
  say_hello
  puts"Hello, #{name}"

#___________________________________________________________
##Ex.3
#Add 2 to the number.
def add_two(number)
 if number.respond_to? :+
  if number.respond_to? :push
      number.push(2)
    else
      number + (2.to_s)
    end
  end
 end

def test_add_two
    p add_two(1)
    p add_two(1.0)
    p add_two(nil)
    p add_two({})
    p add_two([])
    p add_two(false)
    p add_two("")
end

test_add_two