java 表示当前时间的第二天的几点

Calendar cal = Calendar.getInstance();
  cal.setTime(new Date());
  cal.add(Calendar.DAY_OF_YEAR, 1);
  cal.set(Calendar.HOUR_OF_DAY, 7);
  cal.set(Calendar.MINUTE, 0);
  cal.set(Calendar.SECOND, 0);
  System.out.println(cal.getTime());