求关于一个时间运算的方法？
例如

Java code

String endTime = "2010-10-14 00:41:58";int seconds = 3661;3661 等于  01:01:01如何将字符串转化为    "2010-10-14 01:42:59";求方法！

Java code

    try {            DateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");            Date date = format.parse("2010-10-14 00:41:58");            Calendar c = Calendar.getInstance();            c.setTime(date);            c.add(Calendar.SECOND, 3661);                        String s = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(c.getTime());                        System.out.println(s);        } catch (Exception e) {        }