How do you do polymorphism in Ruby?

Question

In C#, I can do this:

class Program
{
    static void Main(string[] args)
    {
        List animals = new List();

        anima         


        

Answer 1

edit: added more code for your updated question

disclaimer: I haven't used Ruby in a year or so, and don't have it installed on this machine, so the syntax might be entirely wrong. But the concepts are correct.

---

The exact same way, with classes and overridden methods:

class Animal
    def MakeNoise
        return ""
    end
    def Sleep
        print self.class.name + " is sleeping.\n"
    end
end

class Dog < Animal
    def MakeNoise
        return "Woof!"
    end
end

class Cat < Animal
    def MakeNoise
        return "Meow!"
    end
end

animals = [Dog.new, Cat.new]
animals.each {|a|
    print a.MakeNoise + "\n"
    a.Sleep
}