constant_inheritance.rb

class Base
  CONSTANT = 1

  def initialize
    puts CONSTANT
  end

  def puts_constant_base
    puts CONSTANT
  end

end

class Derived < Base
  CONSTANT = 2

  def puts_constant_derived
    puts CONSTANT
  end
end

puts "new base"
base = Base.new

puts "new derived"
derived = Derived.new

puts "base puts_constant_base"
base.puts_constant_base

puts "derived puts_constant_base"
derived.puts_constant_base

puts "derived puts_constant_derived"
derived.puts_constant_derived