inheritance.rb

#thursday-08-2017
#@41studio
#Muhammad Yana Mulyana
#inheritance in ruby

class Parent
  def say_hello
    puts "Hello From #{self}"
  end
end

class Child < Parent

end

parent = Parent.new
# parent.say_hello
#
child = Child.new
child.say_hello

p Child.superclass # parent
p Child.superclass.inspect
p Parent.superclass # become an object
p Object.superclass

class Person
  def initialize(name)
    @name = name
  end
  def to_s #convert object into string
    "My name is #{@name}"
  end
end
a = Person.new("Yana")
puts a.to_s