Class Ruby

  1. Home
  2. Ruby
  3. Class
  4. Protected that makes a method private, but within the scope of a class rather than within a single object
# you can call a protected method from the scope of the methods of any object 
# that's a member of the same class:
class Person
  def initialize(age)
    @age = age
  end
  def age
    @age
  end
  def age_difference_with(other_person)
    (self.age - other_person.age).abs
  end
  protected :age
end
fred = Person.new(34)
chris = Person.new(25)
puts chris.age_difference_with(fred)
puts chris.age