Example #1
0
        static void Main(string[] args)
        {
            grandfather[] arr = new grandfather[3];
            arr[0] = new grandfather();
            arr[1] = new father();
            arr[2] = new son();

            for (int i = 0; i < 3; i++)
            {
                Console.WriteLine(arr[i].hello());
            }

            //------------
            ArrayList l = new ArrayList();

            l.Add(new grandfather());
            l.Add(new father());
            l.Add(new son());
            //l.Add(5);

            for (int i = 0; i < 3; i++)
            {
                Console.WriteLine((l[i] as grandfather).hello());
            }

            foreach (grandfather item in l)
            {
                Console.WriteLine((item as grandfather).hello());
            }
        }
Example #2
0
        static void Main(string[] args)
        {
            grandfather[] arr = new grandfather[3];
            arr[0] = new grandfather();
            arr[1] = new father();
            arr[2] = new son();

            for (int i = 0; i < 3; i++)
            {
                Console.WriteLine(arr[i].hello());
            }
        }