C# Stack Implementation (Not Finished)

StackTest.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace StackTest
{
    public class Stack
    {
        private int position;
        object[] data = new object[10];

        public void Push(object obj)
        {
            if (position >= 10)
            {
                Console.WriteLine("You can't exceed limit...");
            }

            data[position++] = obj;
        }

        public object Pop()
        {
            if (position == 0)
            {
                Console.WriteLine("No more item in stack...");
                return data[position];
            }

            data[--position] = null;    
            return data[position];
        }

        public void Print()
        {
            foreach (var o in data)
            {
                if (o == null)
                {
                    Console.WriteLine("Null");
                }
                else
                {
                    Console.WriteLine(o);    
                }
                
            }
        }
    }

    class ObjectType
    {
        static void Main(string[] args)
        {
            Stack stack = new Stack();
            
            stack.Push("sausage");
            stack.Print();

            Console.WriteLine("------");

            stack.Push("salam");
            stack.Print();

            Console.WriteLine("------");

            stack.Pop();
            stack.Print();

            Console.WriteLine("------");

            stack.Push("pizza");
            stack.Print();

            Console.WriteLine("------");

            stack.Pop();
            stack.Print();

            Console.WriteLine("------");

            stack.Pop();
            stack.Print();

            Console.WriteLine("------");

            stack.Pop();
            stack.Print();

            Console.ReadLine();
        }
    }
}