initialize_object.rb

# Initialize Object
# In Ruby, the `initialize` method is a special method that is called when a new instance of a class is created. It is used to set up the initial state of the object. The `initialize` method can take parameters, allowing you to customize the initialization process.

class Guitar
  def initialize
    # every object will print this message when it is created
    puts "A new guitar has been created!"

    # after that every object will have these instance variables with the same value
    @type = "Acoustic"
    @wood = "Mahogany"
    @strings = 6
    @colors = ["Natural", "Sunburst", "Black"]
  end
end

# NOTE: when we create a new instance of the Guitar class,
#       it will print the first message and second message before the instance variables are created, 
#       because the initialize method is called when we create a new instance of the class.


# create instances of the Guitar class
guitar_1 = Guitar.new
guitar_2 = Guitar.new

# checking instance variables with inspect method
p guitar_1
p guitar_2