/* C# Programming Tips & Techniques by Charles Wright, Kris Jamsa Publisher: Osborne/McGraw-Hill (December 28, 2001) ISBN: 0072193794 */ namespace nsFirst { using System; using System.Windows.Forms; public class MessageBoxShowExclamation { static public void Main() { MessageBox.Show ("Hello, C# World!", "Howdy", MessageBoxButtons.OK, MessageBoxIcon.Exclamation); } } }