[RUBY] About class inheritance.

class Apple < Fruit
      #Child class#Parent class
end

class Fruit

  def initialize(fruit_name, fruit_color)#(First argument,Second argument)Formal argument
    #The initialize method is processed at the same time as the new method is executed when the instance is created. No new description is needed for the call.
    @fruit_name = fruit_name
    #@fruit_name is what is called an instance variable.
    @fruit_color = fruit_color
  end

  def name
    puts "this is#{@fruit_name}is."#{value}でvalueの展開を行なっています。
  end

  # def color
  #   puts "#{@fruit_color}The color."
  # end

end

class Apple < Fruit
     #Child class#Parent class

  def name
    puts "This is delicious#{@fruit_name}is." 
    #It can handle instance methods and instance variables defined in the parent class. It is a feature of class inheritance.
    #It is also possible to overwrite the instance method by using the one with the same name as the instance method of the parent class in the child class.
  end
   
  def color
    puts "beautiful#{@fruit_color}The color."
    #You can also handle instance methods that are only child classes.
  end

end


apple = Apple.new("Apple", "Red")#The actual argument, the actual argument and the formal argument must match the number.
apple.name #Generated instance name.You are calling an instance method with an instance method name.
apple.color

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