private

using System;

class Dog
{
 //class members without the keyword public are by default considered private
    public static string name = "lucy";
    public static string gender = "female";
    public static int size = 5;
    public static bool healthy = true;
    public static int age = 2;
};

class PrivateExample
{
    static void Main()
    {

      Console.WriteLine(Dog.age);
      Console.WriteLine(Dog.name);
      Console.WriteLine(Dog.gender);
      Console.WriteLine(Dog.size);
      Console.WriteLine(Dog.healthy);
    }
}