Calendar and date ranges

I hate Java's Calendar and Date apis.  Hopefully JSR 310 will improve things.  

In the meantime, here's a trick for selecting based on a date range :

   Calendar cal = Calendar.getInstance();
   cal.set(Calendar.HOUR, (cal.get(Calendar.HOUR) - 1));
   beforeDate = cal.getTime();
   cal.set(Calendar.DATE, (cal.get(Calendar.DATE) - 1));
   cal.set(Calendar.HOUR_OF_DAY, 00);
   cal.set(Calendar.MINUTE, 00);
   cal.set(Calendar.SECOND, 00);
   afterDate = cal.getTime();

The beforeDate member variable is set to the current date minus one hour.  Then the cal Calendar instance is set to 12:00 AM the day before.