Variables of type object can accept values of any data type

   
 
using System;
class ObjectTest
{
   public int i = 10;
}

class MainClass2
{
   static void Main()
   {
      object a;
      a = 1;   // an example of boxing
      Console.WriteLine(a);
      Console.WriteLine(a.GetType());
      Console.WriteLine(a.ToString());

      a = new ObjectTest();
      ObjectTest classRef;
      classRef = (ObjectTest)a;
      Console.WriteLine(classRef.i);
   }
}