SimpleDateFormat对日期的格式化

public static void main(String[] args) throws IOException, ParseException {
		String str = "2011-10-20 11:10:10";
		SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
		
		Date date = format.parse(str);
		System.out.println(date);
		String d = format.format(date);
		System.out.println(d);
	}