//  Boxings.java  (c) 2005 Kari Laitinen

//  http://www.naturalprogramming.com

//  2004-10-07  File Boxing.java created.
//  2005-05-17  Last modification.

//  This program demonstrates (auto)boxing and unboxing operations.
//  In my C# book there is a program called Boxing.cs. This Java
//  program is an "improved" version of the corresponding C# program.

class Boxings
{
   static int increment_integer( Object integer_as_object )
   {
      int integer_to_increment  =  (Integer) integer_as_object ;

      integer_to_increment  ++  ;

      return  integer_to_increment ;
   }

   static Integer decrement_integer( int integer_to_decrement )
   {
      integer_to_decrement  --  ;

      return  integer_to_decrement ;
   }

   public static void main( String[] not_in_use )
   {
      int  some_integer  =  222 ;

      int  incremented_integer  =  increment_integer( some_integer ) ;

      System.out.print("\n  Incremented value :  "  +  incremented_integer ) ;

      Integer  some_integer_object  =  333 ;

      int  decremented_integer  =  decrement_integer( some_integer_object ) ;

      System.out.print("\n  Decremented value :  "  +  decremented_integer ) ;
   }
}