Given the Java code below, what's the closest you could represent these two static final variables in a Ruby class? And, is it possible in Ruby to distinguish between private static and public static variables as there is in Java?

public class DeviceController
{
  ...
  private static final Device myPrivateDevice = Device.getDevice("mydevice");
  public static final Device myPublicDevice = Device.getDevice("mydevice");
  ...
  public static void main(String args[])
  {
   ...
  }
}