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 Calendar setNextMonth(Calendar calendar) {
    calendar.add(Calendar.MONTH, 1);
    return calendar;
}

From source file:Main.java

public static Calendar setPrevMonth(Calendar calendar) {
    calendar.add(Calendar.MONTH, -1);
    return calendar;
}

From source file:Main.java

/**
 * Set the last day of the month//  w w w .j  a v  a 2 s.c o m
 * @param c Calendar
 */
public static void setLastDayMonth(Calendar c) {
    c.add(Calendar.MONTH, 1);
    c.add(Calendar.DAY_OF_YEAR, -1);
}

From source file:Main.java

private static Date getTomorrowMorning4am() {
    Calendar tomorrow = new GregorianCalendar();
    tomorrow.add(Calendar.DATE, fONE_DAY);
    Calendar result = new GregorianCalendar(tomorrow.get(Calendar.YEAR), tomorrow.get(Calendar.MONTH),
            tomorrow.get(Calendar.DATE), fFOUR_AM, fZERO_MINUTES);
    return result.getTime();
}

From source file:Main.java

public static Date addSeconds(Date date, Integer seconds) {
    Calendar cal = Calendar.getInstance();
    cal.setTime(date);/*www. j av  a  2s.  c o  m*/
    cal.add(Calendar.SECOND, seconds);
    return cal.getTime();
}

From source file:Main.java

public static Date addDays(Date date, Integer days) {
    Calendar cal = Calendar.getInstance();
    cal.setTime(date);/*from ww w  .  j av  a 2  s. co m*/
    cal.add(Calendar.DAY_OF_MONTH, days);
    return cal.getTime();
}

From source file:Main.java

public static Calendar getCalendarSetToFirstDayOfNextMonth(Calendar currentMonth) {
    currentMonth.add(Calendar.MONTH, 1);
    currentMonth.set(Calendar.DAY_OF_MONTH, currentMonth.getActualMinimum(Calendar.DAY_OF_MONTH));
    return currentMonth;
}

From source file:Main.java

public static Calendar getCalendarSetToLastDayOfPreviousMonth(Calendar currentMonth) {
    currentMonth.add(Calendar.MONTH, -1);
    currentMonth.set(Calendar.DAY_OF_MONTH, currentMonth.getActualMaximum(Calendar.DAY_OF_MONTH));
    return currentMonth;
}

From source file:Main.java

/**
 * Add the given amount of days to the given calendar. The changes are reflected in the given
 * calendar.//from   ww  w  . j av a2s. com
 * @param calendar The calendar to add the given amount of days to.
 * @param days The amount of days to be added to the given calendar. Negative values are also
 * allowed, it will just go back in time.
 */
public static void addDays(Calendar calendar, int days) {
    calendar.add(Calendar.DATE, days);
}

From source file:Main.java

/**
 * Add the given amount of hours to the given calendar. The changes are reflected in the given
 * calendar./*from   www. ja v a 2s. co m*/
 * @param calendar The calendar to add the given amount of hours to.
 * @param hours The amount of hours to be added to the given calendar. Negative values are also
 * allowed, it will just go back in time.
 */
public static void addHours(Calendar calendar, int hours) {
    calendar.add(Calendar.HOUR, hours);
}