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:Main.java

public static Date toNearestWholeMinute(Date d) {
    Calendar c = new GregorianCalendar();
    c.setTime(d);// w w  w. ja v a 2  s.  c  o  m

    if (c.get(Calendar.SECOND) >= 30)
        c.add(Calendar.MINUTE, 1);

    c.set(Calendar.SECOND, 0);
    c.set(Calendar.MILLISECOND, 0);

    return c.getTime();
}

From source file:Main.java

/**
 * Add date time with almost one month./* ww w . j ava  2  s . com*/
 *
 * @param listing     the listing
 * @param currentTime the current time
 * @param isPast      true/false if past time
 */
private static void addDateTimeWithAlmostOneMonth(final List<Long> listing, final long currentTime,
        final boolean isPast) {
    final Calendar calendar = Calendar.getInstance();
    calendar.setTimeInMillis(currentTime);
    calendar.add(Calendar.DAY_OF_MONTH, isPast ? -30 : 30);
    listing.add(calendar.getTimeInMillis());
}

From source file:Main.java

/**
 * Add date time with ten days.//from   w w w . ja v  a2  s .com
 *
 * @param listing     the listing
 * @param currentTime the current time
 * @param isPast      true/false if past time
 */
private static void addDateTimeWithTenDays(final List<Long> listing, final long currentTime,
        final boolean isPast) {
    final Calendar calendar = Calendar.getInstance();
    calendar.setTimeInMillis(currentTime);
    calendar.add(Calendar.DAY_OF_MONTH, isPast ? -10 : 10);
    listing.add(calendar.getTimeInMillis());
}

From source file:Main.java

/**
 * Add date time with almost one year.//from   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 addDateTimeWithAlmostOneYear(final List<Long> listing, final long currentTime,
        final boolean isPast) {
    final Calendar calendar = Calendar.getInstance();
    calendar.setTimeInMillis(currentTime);
    calendar.add(Calendar.MONTH, isPast ? -12 : 12);
    listing.add(calendar.getTimeInMillis());
}

From source file:Main.java

/**
 * Add date time with one day./*from   w ww . j a v  a  2  s .c om*/
 *
 * @param listing     the listing
 * @param currentTime the current time
 * @param isPast      true/false if past time
 */
private static void addDateTimeWithOneDay(final List<Long> listing, final long currentTime,
        final boolean isPast) {
    final Calendar calendar = Calendar.getInstance();
    calendar.setTimeInMillis(currentTime);
    calendar.add(Calendar.DAY_OF_MONTH, isPast ? -1 : 1);
    listing.add(calendar.getTimeInMillis());
}

From source file:Main.java

public static Calendar nextMonday() {
    Calendar date = new GregorianCalendar();
    while (date.get(Calendar.DAY_OF_WEEK) != Calendar.MONDAY) {
        date.add(Calendar.DATE, 1);
    }/*from   ww  w .  j  av a2s . co  m*/
    date.set(Calendar.HOUR_OF_DAY, 0);
    date.set(Calendar.MINUTE, 0);
    date.set(Calendar.SECOND, 0);
    date.set(Calendar.MILLISECOND, 0);
    return date;
}

From source file:Main.java

/**
 * Add date time with almost two years./*from   w  w w  . ja  v a  2 s . co m*/
 *
 * @param listing     the listing
 * @param currentTime the current time
 * @param isPast      true/false if past time
 */
private static void addDateTimeWithAlmostTwoYears(final List<Long> listing, final long currentTime,
        final boolean isPast) {
    final Calendar calendar = Calendar.getInstance();
    calendar.setTimeInMillis(currentTime);
    calendar.add(Calendar.MONTH, isPast ? -10 : 10);
    calendar.add(Calendar.YEAR, isPast ? -1 : 1);
    listing.add(calendar.getTimeInMillis());
}

From source file:Main.java

/**
 * Add date time with five years./* w w  w .  j ava 2 s  .c  o  m*/
 *
 * @param listing     the listing
 * @param currentTime the current time
 * @param isPast      true/false if past time
 */
private static void addDateTimeWithFiveYears(final List<Long> listing, final long currentTime,
        final boolean isPast) {
    final Calendar calendar = Calendar.getInstance();
    calendar.setTimeInMillis(currentTime);
    calendar.add(Calendar.MONTH, isPast ? -10 : 10);
    calendar.add(Calendar.YEAR, isPast ? -5 : 5);
    listing.add(calendar.getTimeInMillis());
}

From source file:Main.java

public static int daysBetween(Calendar startDate, Calendar endDate) {

    Calendar date = (Calendar) startDate.clone();
    long daysBetween = 0;
    while (date.before(endDate)) {
        date.add(Calendar.DAY_OF_MONTH, 1);
        daysBetween++;/*from w  ww . jav  a  2  s.  c o  m*/
    }
    return (int) (daysBetween / 365.25);
}

From source file:Main.java

public static Calendar getFinishDate(String startDate, String duration) {
    try {/*from w ww  .  jav  a2s.  co  m*/
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd", Locale.ENGLISH);
        Calendar calendarFinish = Calendar.getInstance();
        calendarFinish.setTime(sdf.parse(startDate));
        calendarFinish.add(Calendar.DATE, Integer.parseInt(duration));
        return calendarFinish;
    } catch (ParseException e) {
        Log.e("PARSE_FAIL", Log.getStackTraceString(e));
    }
    return null;
}