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()

     * @return a string on the format HH:MM:SS representing the time
     * @see org.apache.derby.client.am.DateTime#timeBytesToTime
     */
    private String formatTime(Time time) {
        Calendar cal = getGMTCalendar();
        cal.clear();
        cal.setTime(time);


        char[] buf = "HH:MM:SS".toCharArray();
        padInt(buf, 0, 2, cal.get(Calendar.HOUR_OF_DAY));
        padInt(buf, 3, 2, cal.get(Calendar.MINUTE));

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     * @return a string on the format YYYY-MM-DD-HH.MM.SS.ffffff[fff]
     * @see org.apache.derby.client.am.DateTime#timestampBytesToTimestamp
     */
    private String formatTimestamp(Timestamp ts) {
        Calendar cal = getGMTCalendar();
        cal.clear();
        cal.setTime(ts);


        char[] buf = new char[appRequester.getTimestampLength()];
        padInt(buf, 0, 4, cal.get(Calendar.YEAR));
        buf[4] = '-';

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     * @return a string on the format YYYY-MM-DD representing the date
     * @see org.apache.derby.client.am.DateTime#dateBytesToDate
     */
    private String formatDate(java.sql.Date date) {
        Calendar cal = getGMTCalendar();
        cal.clear();
        cal.setTime(date);


        char[] buf = "YYYY-MM-DD".toCharArray();
        padInt(buf, 0, 4, cal.get(Calendar.YEAR));
        padInt(buf, 5, 2, cal.get(Calendar.MONTH) + 1);

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                    // Get date time.
                    Calendar calendar = Calendar.getInstance();
                    calendar.setTime(new SimpleDateFormat(
                            "dd/MMM/yyyy:HH:mm:ss").parse(dateTime));
                    // remove time so we can filter by date later.
                    calendar.clear(Calendar.MILLISECOND);
                    calendar.clear(Calendar.MINUTE);
                    calendar.clear(Calendar.SECOND);
                    // Weird java bug. calling calendar.clear(Calendar.HOUR)
                    // does not clear the hour but this works.
                    calendar.clear(calendar.HOUR_OF_DAY);

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                    Calendar calendar = Calendar.getInstance();
                    calendar.setTime(new SimpleDateFormat(
                            "dd/MMM/yyyy:HH:mm:ss").parse(dateTime));
                    // remove time so we can filter by date later.
                    calendar.clear(Calendar.MILLISECOND);
                    calendar.clear(Calendar.MINUTE);
                    calendar.clear(Calendar.SECOND);
                    // Weird java bug. calling calendar.clear(Calendar.HOUR)
                    // does not clear the hour but this works.
                    calendar.clear(calendar.HOUR_OF_DAY);
                    calendar.clear(calendar.HOUR);

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                    calendar.setTime(new SimpleDateFormat(
                            "dd/MMM/yyyy:HH:mm:ss").parse(dateTime));
                    // remove time so we can filter by date later.
                    calendar.clear(Calendar.MILLISECOND);
                    calendar.clear(Calendar.MINUTE);
                    calendar.clear(Calendar.SECOND);
                    // Weird java bug. calling calendar.clear(Calendar.HOUR)
                    // does not clear the hour but this works.
                    calendar.clear(calendar.HOUR_OF_DAY);
                    calendar.clear(calendar.HOUR);
                    ArrayList msgs;

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                    calendar.clear(Calendar.MILLISECOND);
                    calendar.clear(Calendar.MINUTE);
                    calendar.clear(Calendar.SECOND);
                    // Weird java bug. calling calendar.clear(Calendar.HOUR)
                    // does not clear the hour but this works.
                    calendar.clear(calendar.HOUR_OF_DAY);
                    calendar.clear(calendar.HOUR);
                    ArrayList msgs;
                    if (logs.containsKey(calendar.getTime())) {
                        msgs = (ArrayList) logs.get(calendar.getTime());
                    } else {

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                    calendar.clear(Calendar.MINUTE);
                    calendar.clear(Calendar.SECOND);
                    // Weird java bug. calling calendar.clear(Calendar.HOUR)
                    // does not clear the hour but this works.
                    calendar.clear(calendar.HOUR_OF_DAY);
                    calendar.clear(calendar.HOUR);
                    ArrayList msgs;
                    if (logs.containsKey(calendar.getTime())) {
                        msgs = (ArrayList) logs.get(calendar.getTime());
                    } else {
                        msgs = new ArrayList();

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                        || endDate == null || endMonth == null || endYear == null) {
                    // just keep the month date and year
                    cal1.set(Calendar.MILLISECOND, 0);
                    cal1.set(Calendar.MINUTE, 0);
                    cal1.set(Calendar.SECOND, 0);
                    cal1.clear(Calendar.HOUR_OF_DAY);
                    cal2.setTime(cal1.getTime());
                    cal2.add(Calendar.DAY_OF_YEAR, 1);


                    WebAccessLog.SearchResults matchingItems = log.getMatchingItems(log.getLogFileNames()[0], //todo: handle multiple
                                                null, null, null, null, cal1.getTime(), cal2.getTime(), null, null);

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                    String requestHost = (String) renderRequest.getParameter("requestHost");
                    String authUser = (String) renderRequest.getParameter("authUser");
                    String requestMethod = (String) renderRequest.getParameter("requestMethod");
                    String requestedURI = (String) renderRequest.getParameter("requestedURI");
                    if (ignoreDates) {
                        cal1.clear();
                        cal2.clear();
                        cal1.set(Calendar.DATE, sdt);
                        cal1.set(Calendar.MONTH, smnth);
                        cal1.set(Calendar.YEAR, syr);
                        cal2.set(Calendar.DATE, edt);

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