      private void Form1_Load(object sender, EventArgs e)
        {
            try
            {
                int y, x = 0;
                y = 100 / x;
            }
            catch (DivideByZeroException)
            {
                textBox1.Text = "Divide by zero occured.";
            }
            finally
            {
                textBox2.Text = "Modify the program and try again.";
            }  
        }
