Examples of java.util.Calendar.clear()

java.util.Calendar.clear()
Sets the given calendar field value and the time value (millisecond offset from the Epoch) of this Calendar undefined. This means that {@link #isSet(int) isSet(field)} will return false, andthe date and time calculations will treat the field as if it had never been set. A Calendar implementation class may use the field's specific default value for date and time calculations.
The {@link #HOUR_OF_DAY}, {@link #HOUR} and {@link #AM_PM}fields are handled independently and the the resolution rule for the time of day is applied. Clearing one of the fields doesn't reset the hour of day value of this Calendar. Use {@link #set(int,int) set(Calendar.HOUR_OF_DAY, 0)} to reset the hourvalue. @param field the calendar field to be cleared. @see #clear()

      }


      //===== WALK the dates that are described in the freq/interval.  Also fill in any
      //===== sets that are required at each level
      Calendar cur = Calendar.getInstance();
      cur.clear();
      cur.setLenient(false);
      Calendar limit = Calendar.getInstance();
      limit.clear();
      limit.setLenient(false);
      limit.setTime(end);

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      //===== sets that are required at each level
      Calendar cur = Calendar.getInstance();
      cur.clear();
      cur.setLenient(false);
      Calendar limit = Calendar.getInstance();
      limit.clear();
      limit.setLenient(false);
      limit.setTime(end);


      //----------------- Build the year list
      cur.setTime( start );

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      resultList = new ArrayList();
      Calendar result = Calendar.getInstance();
      result.setLenient(false);
      result.clear();


/*
      if ( TestRecurrance.debug ){
        println("pS   "+protoDateList.size());
        println("yS   "+yearSet.size()+"  "+yearSet);

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        TimeZone userTimeZone = TimeZone.getTimeZone(userTimeZoneId);
        Calendar now = Calendar.getInstance(userTimeZone, locale);
        // round up the hour if we are at the 1 minute mark of the hour or
        // higher. just clear the second and millisecond fields, its only
        // scheduling not physics.
        now.clear(Calendar.SECOND);
        now.clear(Calendar.MILLISECOND);
        if (now.get(Calendar.MINUTE) > 0) {
          now.clear(Calendar.MINUTE);
          now.add(Calendar.HOUR, 1);
        }

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        Calendar now = Calendar.getInstance(userTimeZone, locale);
        // round up the hour if we are at the 1 minute mark of the hour or
        // higher. just clear the second and millisecond fields, its only
        // scheduling not physics.
        now.clear(Calendar.SECOND);
        now.clear(Calendar.MILLISECOND);
        if (now.get(Calendar.MINUTE) > 0) {
          now.clear(Calendar.MINUTE);
          now.add(Calendar.HOUR, 1);
        }
        activityForm.setActivityStartDate(df.format(now.getTime()));

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        // higher. just clear the second and millisecond fields, its only
        // scheduling not physics.
        now.clear(Calendar.SECOND);
        now.clear(Calendar.MILLISECOND);
        if (now.get(Calendar.MINUTE) > 0) {
          now.clear(Calendar.MINUTE);
          now.add(Calendar.HOUR, 1);
        }
        activityForm.setActivityStartDate(df.format(now.getTime()));
        activityForm.setActivityStartTime(tf.format(now.getTime()));
        // Increment now by 1 hour to get the end time.

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        Calendar cal = Calendar.getInstance();
        cal.set(2004, Calendar.DECEMBER, 31, 0, 0, 0);
        cal.set(Calendar.MILLISECOND, 0);
        Timestamp t1 = new Timestamp(cal.getTime().getTime());
        cal.clear();
        cal.set(2004, Calendar.AUGUST, 1, 0, 0, 0);
        cal.set(Calendar.MILLISECOND, 0);
        Timestamp t2 = new Timestamp(cal.getTime().getTime());
        
        // Create expected results

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            c = getCalendar();
        } else {
            c = Calendar.getInstance(tz);
        }
        synchronized (c) {
            c.clear();
            c.setLenient(lenient);
            if (year <= 0) {
                c.set(Calendar.ERA, GregorianCalendar.BC);
                c.set(Calendar.YEAR, 1 - year);
            } else {

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     * @return the date value
     */
    public static long dateValueFromDate(long ms) {
        Calendar cal = getCalendar();
        synchronized (cal) {
            cal.clear();
            cal.setTimeInMillis(ms);
            int year, month, day;
            year = getYear(cal);
            month = cal.get(Calendar.MONTH) + 1;
            day = cal.get(Calendar.DAY_OF_MONTH);

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     * @return the date value
     */
    public static long nanosFromDate(long ms) {
        Calendar cal = getCalendar();
        synchronized (cal) {
            cal.clear();
            cal.setTimeInMillis(ms);
            int h = cal.get(Calendar.HOUR_OF_DAY);
            int m = cal.get(Calendar.MINUTE);
            int s = cal.get(Calendar.SECOND);
            int millis = cal.get(Calendar.MILLISECOND);

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