public final static String deleteAllofAny(final String str, final char[] theseChars)
	{
		if((str==null)
		||(theseChars==null)
		||(str.length()==0)
		||(!containsAny(str,theseChars)))
			return str;
		final StringBuilder buf=new StringBuilder(str);
		for(int i=buf.length()-1;i>=0;i--)
			if(contains(theseChars,buf.charAt(i)))
			{
				buf.deleteCharAt(i);
			}
		return buf.toString();
	}