//
//   This file contains the C# code from Program 7.6 of
//   "Data Structures and Algorithms
//    with Object-Oriented Design Patterns in C#"
//   by Bruno R. Preiss.
//
//   Copyright (c) 2001--2002 by Bruno R. Preiss, P.Eng.  All rights reserved.
//
//   http://www.brpreiss.com/books/opus6/programs/pgm07_06.txt
//
public class OrderedListAsArray :
    AbstractSearchableContainer, OrderedList
{
    protected ComparableObject[] array;

    public override void Withdraw(ComparableObject obj)
    {
	if (count == 0)
	    throw new ContainerEmptyException();
	int i = 0;
	while (i < count && (object)array[i] != (object)obj)
	    ++i;
	if (i == count)
	    throw new ArgumentException("object not found");
	for ( ; i < count - 1; ++i)
	    array[i] = array[i + 1];
	array[i] = null;
	--count;
    }
    // ...
}