static void listRabbits()
 {
     using (var db = new RabbitDbContext())
     {
         rabbits = db.Rabbits.ToList();
     }
     rabbits.ForEach(r => Console.WriteLine($"{r.RabbitId,-10}{r.RabbitName,-20}{r.Age}"));
 }
 static void updateRabbit()
 {
     using (var db = new RabbitDbContext())
     {
         var rabbitToUpdate = db.Rabbits.Find(3);
         rabbitToUpdate.RabbitName = "Rabbit3 has a new name";
         db.SaveChanges();
     }
 }
 static void addRabbit()
 {
     using (var db = new RabbitDbContext())
     {
         var rabbit = new Rabbit(3, "Rabbit3", 0);
         //add to database
         db.Rabbits.Add(rabbit);
         db.SaveChanges();
     }
 }