//  ReverseWithArrayList.java  (c) 2004 Kari Laitinen

//  http://www.naturalprogramming.com

//  2005-06-19  File created.
//  2005-06-19  Last modification.

//  A solution to exercise 15-4.

import java.util.* ;

class ReverseWithArrayList
{
   public static void main( String[] not_in_use )
   {
      Scanner keyboard = new Scanner( System.in ) ;

      ArrayList<Integer> array_of_integers  =  new  ArrayList<Integer>() ;

      int   integer_index   =  0 ;

      int   integer_from_keyboard  =  0 ;

      System.out.print("\n This program reads integers from the keyboard."
                 +  "\n After receiving a zero, it prints the numbers"
                 +  "\n in reverse order. Please, start entering numbers."
                 +  "\n The program will stop when you enter a zero.\n\n") ;
      do
      {
         System.out.print( " "  +  integer_index  +  "  Enter an integer: ") ;
         integer_from_keyboard  =  keyboard.nextInt() ;

         array_of_integers.add( integer_from_keyboard ) ;
         integer_index  ++  ;
      }
       while  ( integer_from_keyboard  !=  0 ) ;

      System.out.print( "\n Reverse order:  " ) ;

      while  ( integer_index  >  0 )
      {
         integer_index  -- ;
         System.out.print( array_of_integers.get( integer_index )  +  "   " ) ;
      } 
   }
}