Example usage for java.util Calendar add

Introduction

In this page you can find the example usage for java.util Calendar add.

Prototype

public abstract void add(int field, int amount);

Source Link

Document

Adds or subtracts the specified amount of time to the given calendar field, based on the calendar's rules.

Usage

From source file:net.firejack.platform.core.utils.DateUtils.java

/**
 * Decrements the date by one week/*from w  ww.  j av  a2 s .  co  m*/
 * @param date - date to be decremented
 * @return decremented date
 */
public static Date decDateByWeek(Date date) {
    Calendar cal = new GregorianCalendar();
    cal.setTime(date);
    cal.add(Calendar.WEEK_OF_MONTH, -1);
    date.setTime(cal.getTimeInMillis());
    return date;
}

From source file:com.appeligo.search.entity.Message.java

public static void deleteOldMessages(int days, int maxAttempts) {
    Session session = getSession();//from  w  w w  . j  a va 2s. co m
    Query query = session.getNamedQuery("Message.deleteOldMessages");
    Calendar cal = Calendar.getInstance();
    cal.add(Calendar.HOUR_OF_DAY, (0 - (days * 24)));
    query.setTimestamp("oldestSent", new Timestamp(cal.getTimeInMillis()));
    query.setInteger("maxAttempts", maxAttempts);
    query.executeUpdate();
}

From source file:Main.java

private static void populateDayRanges(Date start, Date end) {
    Calendar startCal = Calendar.getInstance();
    startCal.setTime(start);/* ww  w. ja  va 2  s  .  c  o m*/
    Calendar endCal = Calendar.getInstance();
    endCal.setTime(end);

    sDayNames.clear();
    sDayAbbreviations.clear();

    for (Date date = startCal.getTime(); startCal.before(endCal); startCal.add(Calendar.DATE,
            1), date = startCal.getTime()) {
        sDayNames.add(dayLabelFormatter.format(date));
        sDayAbbreviations.add(dayAbbrevFormatter.format(date));
    }
}

From source file:net.firejack.platform.core.utils.DateUtils.java

/**
 * Converts the number of days since the epoch to the date
 * @param days - number of days since the epoch
 * @return date//from  w ww. ja v a  2  s .co  m
 */
public static Date epochDays2Date(int days) {
    Calendar cal = new GregorianCalendar();
    cal.setTimeInMillis(0);
    cal.add(Calendar.DAY_OF_YEAR, days);
    return cal.getTime();
}

From source file:Main.java

public static java.util.Date getDateEnd(java.util.Date d) {
    Calendar c = Calendar.getInstance();
    c.clear();//from www.j av a2  s  . co  m
    Calendar co = Calendar.getInstance();
    co.setTime(d);
    c.set(Calendar.DAY_OF_MONTH, co.get(Calendar.DAY_OF_MONTH));
    c.set(Calendar.MONTH, co.get(Calendar.MONTH));
    c.set(Calendar.YEAR, co.get(Calendar.YEAR));
    c.add(Calendar.DAY_OF_MONTH, 1);
    c.add(Calendar.MILLISECOND, -1);
    return c.getTime();
}

From source file:com.baomidou.framework.common.util.DateUtil.java

/**
 * /* w  ww .  j  av a  2s  .c o m*/
 * ????
 * 
 * @param date
 *            
 * 
 * @param calendarField
 *            ??????Calendar
 * 
 * @param offsite
 *            ???????????
 * 
 * @return ???
 * 
 */
public static Date getOffsiteDate(Date date, int calendarField, int offsite) {
    Calendar cal = Calendar.getInstance();
    cal.setTime(date);
    cal.add(calendarField, offsite);
    return cal.getTime();
}

From source file:Main.java

/**
 * Add date time with nine minutes./*from  ww w .  j a  v a2 s . c o  m*/
 *
 * @param listing     the listing
 * @param currentTime the current time
 * @param isPast      true/false if past time
 */
private static void addDateTimeWithNineMinutes(final List<Long> listing, final long currentTime,
        final boolean isPast) {
    final Calendar calendar = Calendar.getInstance();
    calendar.setTimeInMillis(currentTime);
    calendar.add(Calendar.MINUTE, isPast ? -9 : 9);
    listing.add(calendar.getTimeInMillis());
}

From source file:Main.java

/**
 * Add date time with fifty one minutes.
 *
 * @param listing     the listing/*from  w w  w.  j a v a  2 s  . c o m*/
 * @param currentTime the current time
 * @param isPast      true/false if past time
 */
private static void addDateTimeWithFiftyOneMinutes(final List<Long> listing, final long currentTime,
        final boolean isPast) {
    final Calendar calendar = Calendar.getInstance();
    calendar.setTimeInMillis(currentTime);
    calendar.add(Calendar.MINUTE, isPast ? -51 : 51);
    listing.add(calendar.getTimeInMillis());
}

From source file:Main.java

/**
 * Add date time with five hours./*w  w w.ja  v a  2s. c om*/
 *
 * @param listing     the listing
 * @param currentTime the current time
 * @param isPast      true/false if past time
 */
private static void addDateTimeWithFiveHours(final List<Long> listing, final long currentTime,
        final boolean isPast) {
    final Calendar calendar = Calendar.getInstance();
    calendar.setTimeInMillis(currentTime);
    calendar.add(Calendar.HOUR, isPast ? -3 : 3);
    listing.add(calendar.getTimeInMillis());
}

From source file:Main.java

/**
 * Add date time with six months.//from w ww . j  av a  2s .  c om
 *
 * @param listing     the listing
 * @param currentTime the current time
 * @param isPast      true/false if past time
 */
private static void addDateTimeWithSixMonths(final List<Long> listing, final long currentTime,
        final boolean isPast) {
    final Calendar calendar = Calendar.getInstance();
    calendar.setTimeInMillis(currentTime);
    calendar.add(Calendar.MONTH, isPast ? -6 : 6);
    listing.add(calendar.getTimeInMillis());
}