//   Copyright (c) 1996, 1997, 1998 Bruno R. Preiss, P.Eng.

//   $Author: brpreiss $
//   $Date: 1998/12/14 02:52:01 $
//   $RCSfile: Demo4.java,v $
//   $Revision: 3.5 $

package Opus5;

/**
* Demonstration program that tests the following classes:
* <code>ChainedHashTable</code>,
* <code>ChainedScatterTable</code>, and
* <code>OpenScatterTable</code>.
* @see ChainedHashTable
* @see ChainedScatterTable
* @see OpenScatterTable
* @author Bruno R. Preiss, P.Eng.
* @version $Id: Demo4.java,v 3.5 1998/12/14 02:52:01 brpreiss Exp $
**/
public class Demo4
{
//[
    final String copyright =
	"@(#) Copyright (c) 1998 by Bruno R. Preiss, P.Eng.";
//]
    /**
    * Prints the hashcodes for the strings
    * "ett", "tv&aring;", "tre", "fyra", "fem", "sex",
    * "sju", "&aring;tta", "nio", "tio", "elva", "tolv".
    **/
    private static void testHash ()
    {
	Terminal.out.println ("ett=" + Integer.toOctalString (
	    new Str ("ett").hashCode ()));
	Terminal.out.println ("tv\u00e5=" + Integer.toOctalString (
	    new Str ("tv\u00e5").hashCode ()));
	Terminal.out.println ("tre=" + Integer.toOctalString (
	    new Str ("tre").hashCode ()));
	Terminal.out.println ("fyra="+ Integer.toOctalString (
	    new Str ("fyra").hashCode ()));
	Terminal.out.println ("fem=" + Integer.toOctalString (
	    new Str ("fem").hashCode ()));
	Terminal.out.println ("sex=" + Integer.toOctalString (
	    new Str ("sex").hashCode ()));
	Terminal.out.println ("sju=" + Integer.toOctalString (
	    new Str ("sju").hashCode ()));
	Terminal.out.println ("\u00e5tta="+ Integer.toOctalString (
	    new Str ("\u00e5tta").hashCode ()));
	Terminal.out.println ("nio=" + Integer.toOctalString (
	    new Str ("nio").hashCode ()));
	Terminal.out.println ("tio=" + Integer.toOctalString (
	    new Str ("tio").hashCode ()));
	Terminal.out.println ("elva="+ Integer.toOctalString (
	    new Str ("elva").hashCode ()));
	Terminal.out.println ("tolv="+ Integer.toOctalString (
	    new Str ("tolv").hashCode ()));
    }

    /**
    * Performs various tests on the specified hash table.
    * @param hashTable The hash table to be tested.
    **/
    private static void testHashTable (HashTable hashTable)
    {
	Terminal.out.println (hashTable);

	hashTable.insert (new Association (new Str ("foo"), new Dbl (1.2)));
	hashTable.insert (new Association (new Str ("bar"), new Dbl (3.4)));
	hashTable.insert (new Association (new Str ("foo"), new Dbl (5.6)));
	Terminal.out.println (hashTable);

	Comparable obj = hashTable.find (new Association (new Str ("foo")));
	Terminal.out.println (obj);
	hashTable.withdraw (obj);
	Terminal.out.println (hashTable);

	Enumeration i = hashTable.getEnumeration ();
	while (i.hasMoreElements ())
	    Terminal.out.println (i.nextElement ());
    }

    /**
    * The (static) main program.
    * Invokes various test routines.
    * @param args The command-line arguments. Ignored.
    **/
    public static void main (String[] args)
    {
	testHash ();

	Terminal.out.println ("ChainedHashTable Test");
	HashTable hashTable = new ChainedHashTable (57);
	testHashTable (hashTable);

	Terminal.out.println ("ChainedScatterTable Test");
	hashTable = new ChainedScatterTable (57);
	testHashTable (hashTable);

	Terminal.out.println ("OpenScatterTable Test");
	hashTable = new OpenScatterTableV2 (57);
	testHashTable (hashTable);
    }
}