java.util.Calendar提供对datetime的操作。Calendar cal = Calendar.getInstance(); // 得到实例Date dt = cal.getTime(); // 获得日期时间;cal.setTime(dt1); // 给calendar设置时间cal.set(int year, int month, int date) cal.set(int year, int month, int date, int hourOfDay, int minute) 还有很多,请参考API Spec
cal.set(int year, int month, int date, int hourOfDay, int minute) 还有很多,请参考API Spec