/* MovieRating -  very simple helper class * Copyright 2001, Bruce E. Wampler */public class MovieRating{    private static String[] values =       {	"G", "PG", "PG-13", "R", "NC-17", "X", "NR", "Unknown"      };    public static int indexOf(String str)    {	for (int ix = 0 ; ix < values.length ; ++ix)	    if (values[ix].equals(str))	        return ix;	return 0;    }    public static String stringAt(int at)    {	if (at < 0 || at >= values.length)	    return "Unknown";	return values[at];    }    public static String[] getNames()    {        return values;    }}