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:com.orig.gls.admin.user.dao.Access.java

private static Date getExpDate(int numberOfDays) {
    Date today = new Date();
    Calendar cal = Calendar.getInstance();
    cal.add(Calendar.DAY_OF_MONTH, numberOfDays);
    return cal.getTime();
}

From source file:com.hueemulator.lighting.utils.TestUtils.java

public static String getDateSecondsInFuture(int noSeconds) {
    Calendar calendar = Calendar.getInstance(); // gets a calendar using the default time zone and locale.
    calendar.add(Calendar.SECOND, noSeconds);

    return dateFormat.format(calendar.getTime());
}

From source file:com.acmeair.web.LoaderREST.java

private static Date getArrivalTime(Date departureTime, int mileage) {
    double averageSpeed = 600.0; // 600 miles/hours
    double hours = (double) mileage / averageSpeed; // miles / miles/hour =
                                                    // hours
    double partsOfHour = hours % 1.0;
    int minutes = (int) (60.0 * partsOfHour);
    Calendar c = Calendar.getInstance();
    c.setTime(departureTime);/*w  w  w  .j a v  a  2s  .c  o m*/
    c.add(Calendar.HOUR, (int) hours);
    c.add(Calendar.MINUTE, minutes);
    return c.getTime();
}

From source file:CalendarUtilsTest.java

/**
 * This checks that this is a 7 element iterator of Calendar objects
 * that are dates (no time), and exactly 1 day spaced after each other.
 *///from w w  w  .  j a va  2 s . c  om
private static void assertWeekIterator(Iterator it, Calendar start) {
    Calendar end = (Calendar) start.clone();
    end.add(Calendar.DATE, 6);

    assertWeekIterator(it, start, end);
}

From source file:com.esofthead.mycollab.core.utils.DateTimeUtils.java

/**
 * //w  ww  . ja v  a  2s  .c o m
 * @param date
 * @param duration
 *            Example: Date date = subtractOrAddDayDuration(new Date(), -2);
 *            // Result: the last 2 days
 * 
 *            Date date = subtractOrAddDayDuration(new Date(), 2); //
 *            Result: the next 2 days
 * @return
 */
public static Date subtractOrAddDayDuration(Date date, int duration) {
    Calendar cal = new GregorianCalendar();
    cal.setTime(date);
    cal.add(Calendar.DAY_OF_MONTH, duration);
    Date dateExpect = cal.getTime();
    return dateExpect;
}

From source file:Main.java

public static String[] getWeekDays() {
    Calendar calendar = Calendar.getInstance();
    calendar.set(Calendar.DAY_OF_WEEK, Calendar.SUNDAY);
    String[] weekDays = new String[7];
    for (int i = 0; i < 7; i++) {
        weekDays[i] = WEEK_DAYS_FORMAT.format(calendar.getTime());
        calendar.add(Calendar.DATE, 1);
    }/* ww w . jav a 2 s. c o m*/
    return weekDays;
}

From source file:Main.java

public static int getDayCounts(Date startDate, Date endDate) {
    int days = 0;
    Calendar startCalendar = Calendar.getInstance();
    startCalendar.setTime(startDate);//from www. j  ava  2s.c om
    Calendar endCalendar = Calendar.getInstance();
    endCalendar.setTime(endDate);
    while (startCalendar.before(endCalendar)) {
        days++;
        startCalendar.add(Calendar.DATE, 1);
    }
    return days;
}

From source file:com.iflytek.kcloud.web.utils.BookDateUtil.java

/**
 * getDay:?. <br/>//  w ww . ja v  a2 s  .  c  om
 *
 * @param gap (0,1,-1....)
 * @return
 * @throws ParseException
 * @author zyyang3
 * @since JDK 1.6
 */
public static String getDay(String time, int gap) throws ParseException {
    Calendar cal = Calendar.getInstance();
    Date datetmp = sdf.parse(time);
    cal.setTime(datetmp);
    cal.add(Calendar.DAY_OF_MONTH, gap);
    Date date = cal.getTime();
    String day = DateFormatUtils.format(date, "yyyy-MM-dd");
    return day;
}

From source file:com.ccf.util.ModDateHeaderUtil.java

/**
 * ??//from   w  ww  .ja va  2s .c  om
 * @param response
 */
public static void setLastModifiedHeader(HttpServletResponse response) {
    SimpleDateFormat df = new SimpleDateFormat("E, d MMM yyyy HH:mm:ss");
    Calendar lastModifiedCal = Calendar.getInstance(TimeZone.getTimeZone("GMT"));
    String lastModified = df.format(lastModifiedCal.getTime());

    Calendar cal = Calendar.getInstance(TimeZone.getTimeZone("GMT"));
    response.setHeader("Date", df.format(cal.getTime()) + " GMT");
    cal.add(Calendar.DAY_OF_MONTH, 1);
    // response.setHeader("Expires",df.format(cal.getTime())+" GMT");
    response.setHeader("Retry-After", df.format(cal.getTime()) + " GMT");
    response.setHeader("Cache-Control", "public");
    //response.setHeader("Last-Modified",lastModified+" GMT");

    response.setDateHeader("Last-Modified", System.currentTimeMillis() - 60 * 60 * 1000);
    // Force clients to revalidate each time
    // See RFC 2616 (HTTP 1.1 spec) secs 14.21, 13.2.1
    response.setDateHeader("Expires", System.currentTimeMillis() + (expiresOffset * 1000));
    // We may also want this (See 13.2.1 and 14.9.4)
    // response.setHeader("Cache-Control","must-revalidate");
}

From source file:Main.java

public static String[] getShortWeekDays() {
    Calendar calendar = Calendar.getInstance();
    calendar.set(Calendar.DAY_OF_WEEK, Calendar.SUNDAY);
    String[] weekDays = new String[7];
    for (int i = 0; i < 7; i++) {
        weekDays[i] = SHORT_WEEK_DAYS_FORMAT.format(calendar.getTime());
        calendar.add(Calendar.DATE, 1);
    }// w w w  .  j  ava2 s  .  co  m
    return weekDays;
}