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

/**
 * Returns yesterday's date formatted according to the HTTP specification
 * standard date format./*from w w  w.j  av a  2s. co  m*/
 *
 * @return a formatted string.
 */
public static String getExpiredHttpDateString() {
    Calendar cal = Calendar.getInstance();
    cal.add(Calendar.DAY_OF_YEAR, -1);

    return getHttpDateString(cal.getTime());
}

From source file:Main.java

/**
 * Get next month first day/*from  w  ww .j  av  a2 s .  co  m*/
 */
public static int getNextMonthFirstDay() {
    Calendar lastDate = Calendar.getInstance();
    lastDate.add(Calendar.MONTH, 1);
    lastDate.set(Calendar.DATE, 1);
    return lastDate.getActualMinimum(Calendar.DAY_OF_MONTH);
}

From source file:Main.java

public static String getDateFormattedRecent(Date date, int daysAgo) {

    //display day of the week for activities occurred in the last daysAgo
    Calendar calendar = Calendar.getInstance();
    calendar.add(Calendar.DATE, 0 - daysAgo);

    Date weekAgo = calendar.getTime();
    if (date.after(weekAgo)) {
        return new SimpleDateFormat("EEE").format(date);//EEE, short version of day of the week
    }//  w w  w  .  ja va2 s.c o m
    //otherwise, display the date of the activity
    else {
        return new SimpleDateFormat("MM.dd.yy").format(date);
    }
}

From source file:Main.java

/**
 * Get last month end day/* w  w w.ja  va  2  s.  c  om*/
 */
public static int getLastMonthEndDay() {
    Calendar lastDate = Calendar.getInstance();
    lastDate.add(Calendar.MONTH, -1);
    lastDate.set(Calendar.DATE, 1);
    lastDate.roll(Calendar.DATE, -1);
    return lastDate.getActualMaximum(Calendar.DAY_OF_MONTH);
}

From source file:Main.java

public static Date addDays(Date date, int days) {
    Calendar cal = Calendar.getInstance();
    cal.setTime(date);//from  ww w  . j a  v  a2  s  .com
    cal.add(Calendar.DATE, days); //minus number would decrement the days
    return cal.getTime();
}

From source file:Main.java

/**
 * Get next month end day//from w  w w . j  a  v  a2s.  c o  m
 *
 * @return
 */
public static int getNextMonthEndDay() {
    Calendar lastDate = Calendar.getInstance();
    lastDate.add(Calendar.MONTH, 1);
    lastDate.set(Calendar.DATE, 1);
    lastDate.roll(Calendar.DATE, -1);
    return lastDate.getActualMaximum(Calendar.DAY_OF_MONTH);
}

From source file:Main.java

private static Calendar add(long time, int val, int field) {
    Calendar c = Calendar.getInstance();
    c.setTimeInMillis(time);//from   ww w  .  j  a  va 2 s .c  om
    c.add(field, val);
    return c;
}

From source file:Main.java

public static void addCalendarMinute(Calendar cal, int minutes) {
    cal.add(Calendar.MINUTE, minutes);
}

From source file:Main.java

public static Date addFiveMinutes(Date date) {

    Calendar cal = Calendar.getInstance();
    cal.setTime(date);//from w  w  w .j a  va 2s .  c o  m
    cal.add(Calendar.MINUTE, 5);
    return cal.getTime();
}

From source file:Main.java

public static Date addHours(Date date, int hours) {
    Calendar cal = Calendar.getInstance();
    cal.setTime(date);//w  w  w  .  java 2  s .c  om
    cal.add(Calendar.HOUR_OF_DAY, hours);
    return cal.getTime();
}