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 long getTomorrowZeroTimeInMillis() {
    Calendar calendar = getZeroSecondCalendar();
    calendar.add(Calendar.DAY_OF_YEAR, 1);
    calendar.set(Calendar.HOUR_OF_DAY, 0);
    calendar.set(Calendar.MINUTE, 0);
    return calendar.getTimeInMillis();
}

From source file:Main.java

public static Date addMonth(Date date, int months) {
    Calendar calendar = Calendar.getInstance();
    calendar.setTime(date);/*from   ww  w.j a  v a2  s. co  m*/
    calendar.add(Calendar.MONTH, months);
    return calendar.getTime();
}

From source file:Main.java

public static String getTime(int laterTime) {
    Calendar calendar = Calendar.getInstance();

    if (laterTime != 0)
        calendar.add(Calendar.HOUR_OF_DAY, 1);

    return new SimpleDateFormat("hh:mm a").format(calendar.getTime());
}

From source file:Main.java

public static Date addDate(Date date, int days) {
    Calendar calendar = Calendar.getInstance();
    calendar.setTime(date);//from   w w w  . ja v a  2  s.c o  m
    calendar.add(Calendar.DATE, days);
    return calendar.getTime();
}

From source file:Main.java

public static String toDate(Date date, int add) {
    Calendar calendar = Calendar.getInstance();
    calendar.setTime(date);/*ww w .j  a  v a2 s  .  c  o m*/
    calendar.add(Calendar.DATE, add);
    return toDate(calendar.getTime());
}

From source file:Main.java

public static Date getNextDay(Date date) {
    Calendar day = Calendar.getInstance();
    day.setTime(date);//from w  w w .j  a v  a  2 s  .  co  m
    day.add(Calendar.DAY_OF_MONTH, 1);

    return day.getTime();
}

From source file:Main.java

public static Date datePlusNDay(Date date, int n) {
    Calendar calendar = Calendar.getInstance();

    calendar.setTime(date);/*www  . ja  v  a 2 s  . co m*/
    calendar.add(Calendar.DAY_OF_YEAR, n);

    return calendar.getTime();
}

From source file:Main.java

/**
 * @param date//from w  w  w . j a  v  a 2 s  .c  om
 * @return
 */
public static String formatToYesterdayOrToday(Date date) {
    Calendar today = Calendar.getInstance();
    Calendar yesterday = Calendar.getInstance();
    yesterday.add(Calendar.DATE, -1);
    Calendar calendar = Calendar.getInstance();
    calendar.setTime(date);

    SimpleDateFormat timeFormatter = new SimpleDateFormat("HH:mm");

    if (calendar.get(Calendar.YEAR) == today.get(Calendar.YEAR)
            && calendar.get(Calendar.DAY_OF_YEAR) == today.get(Calendar.DAY_OF_YEAR)) {
        return "Today, " + timeFormatter.format(date);
    } else if (calendar.get(Calendar.YEAR) == yesterday.get(Calendar.YEAR)
            && calendar.get(Calendar.DAY_OF_YEAR) == yesterday.get(Calendar.DAY_OF_YEAR)) {
        return "Yesterday, " + timeFormatter.format(date);
    } else {
        return DateFormat.format("MMM dd, ", date).toString() + timeFormatter.format(date);

    }
}

From source file:models.Activation.java

public static Activation generateActivationCode(User u, int validForDays) {
    Activation a = new Activation();
    a.user = u;/*from   ww w  .jav  a2  s  .c  om*/
    u.activation = a;
    a.activationCode = RandomStringUtils.randomAlphanumeric(40);

    Calendar c = Calendar.getInstance();
    c.add(Calendar.DATE, validForDays);

    a.expirationDate = c.getTime();

    a.save();
    u.save();

    return a;
}

From source file:Main.java

/**
 * Returns the previous day of the passed {@link Date}
 *
 * @return The date - 24 hours/*from  w  w  w.jav  a  2s.  c om*/
 */
public static Date getYesterday(Date date) {
    if (date == null) {
        return getYesterday(new Date());
    }

    Calendar cal = Calendar.getInstance();
    cal.setTime(date);
    cal.add(Calendar.DAY_OF_WEEK, -1);

    return new Date(cal.getTimeInMillis());
}