/* C# Programming Tips & Techniques by Charles Wright, Kris Jamsa Publisher: Osborne/McGraw-Hill (December 28, 2001) ISBN: 0072193794 */ namespace nsBox { using System; struct Point { public Point (int x, int y) { cx = x; cy = y; } public override string ToString () { return ("(" + cx + ", " + cy + ")"); } public int cx; public int cy; } public class BoxUnBox { static public void Main () { long LongVal = 9600; object o = LongVal; ShowObject (o); o = 4096; ShowObject (o); Point point = new Point (42, 96); ShowObject (point); clsBox test = new clsBox(); ShowObject (test); } static public void ShowObject (object o) { if (o is int) Console.WriteLine ("The object is an integer"); if (o is long) Console.WriteLine ("The object is a long"); else if (o is Point) Console.WriteLine ("The object is a Point structure"); else if (o is clsBox) Console.WriteLine ("The object is a clsBox class object"); Console.WriteLine ("The value of object is " + o + " "); } } class clsBox { public override string ToString() { return (""-- clsBox --""); } } }