public class Elephant
    {
        public string Name { get; set; }
        public int EarSize { get; set; }

        public Elephant(string name, int earSize)
        {
            Name = name;
            EarSize = earSize;
        }

        public void WhoIAm()
        {
            MessageBox.Show("My name is " + Name + " and my ears are " + EarSize + " inches tall.");
        }





public partial class Form1 : Form
    {
        Elephant elephant1;
        Elephant elephant2;

        public Form1()
        {
            InitializeComponent();
            Elephant elephant1 = new Elephant("Братишка", 20);
            Elephant elephant2 = new Elephant("Пахом", 20);
        }

        private void button3_Click(object sender, EventArgs e)
        {
            Elephant elephantSwap = elephant1;
            elephant1 = elephant2;
            elephant2 = elephantSwap;
            MessageBox.Show("Поменяно.");
            Console.WriteLine(elephant1.Name, elephant1.EarSize);
        }

        private void button1_Click(object sender, EventArgs e)
        {
            elephant1.WhoIAm();
        }

        private void button2_Click(object sender, EventArgs e)
        {
            elephant2.WhoIAm();

        }
    }