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 getYesterTime() {
    Calendar calendar = Calendar.getInstance();
    calendar.setTime(new Date());
    calendar.add(Calendar.DAY_OF_MONTH, -1);
    return calendar.getTimeInMillis();
}

From source file:Main.java

public static Date getPreNDay(Date presentDate, int n) {
    Calendar calendar = Calendar.getInstance();
    calendar.setTime(presentDate);//www . j a  v  a  2 s  . c om
    calendar.add(Calendar.DAY_OF_MONTH, -n);
    presentDate = calendar.getTime();
    return presentDate;
}

From source file:Main.java

public static Date getNextDay(Date presentDate) {
    Calendar calendar = Calendar.getInstance();
    calendar.setTime(presentDate);//from  w w w. j a  v  a 2s .  c o m
    calendar.add(Calendar.DAY_OF_MONTH, 1);
    presentDate = calendar.getTime();
    return presentDate;
}

From source file:Main.java

public static Date getPreDay(Date presentDate) {
    Calendar calendar = Calendar.getInstance();
    calendar.setTime(presentDate);//from w w w  . ja  va2s  .c o  m
    calendar.add(Calendar.DAY_OF_MONTH, -1);
    presentDate = calendar.getTime();
    return presentDate;
}

From source file:Main.java

public static Date addMinutes(Date date, int min) {
    if (date == null) {
        return null;
    }//from   w w  w . j av a2s .  c  om

    Calendar calendar = Calendar.getInstance();
    calendar.setTime(date);
    calendar.add(Calendar.MINUTE, min);
    return calendar.getTime();
}

From source file:Main.java

/**
 * Get the seven days before date//ww  w .  j a  v  a 2 s  .  co m
 * 
 * @return {@link String}
 */

public static String GetDateSevenDaysBack() {
    DateFormat formatter = new SimpleDateFormat("dd_MMM_yyyy");
    Calendar calendar = Calendar.getInstance();
    calendar.add(Calendar.DAY_OF_YEAR, -7);
    return formatter.format(calendar.getTime());

}

From source file:Main.java

public static long getEndOfCurrentWeek() {
    Calendar calendar = getCalendarWithTime(getStartOfCurrentWeek());
    calendar.add(Calendar.DATE, 6);
    return calendar.getTimeInMillis();
}

From source file:Main.java

public static String getDateStr(int index) {
    SimpleDateFormat df = new SimpleDateFormat("yyyyMMdd");

    java.util.Calendar calendar = new java.util.GregorianCalendar();

    calendar.add(Calendar.DATE, index);

    String retDate = "";
    try {/*from   ww  w .  j a  v  a  2  s  .  c om*/
        retDate = df.format(calendar.getTime());
    } catch (Exception ex) {
        ex.printStackTrace();
    }

    return retDate;

}

From source file:Main.java

public static String getNextDateByMonth(String s, int i) {

    SimpleDateFormat simpledateformat = new SimpleDateFormat("yyyyMMdd");
    java.util.Date date = simpledateformat.parse(s, new ParsePosition(0));
    Calendar calendar = Calendar.getInstance();
    calendar.setTime(date);/*from  w w w.  j  a v a  2s.  co m*/
    calendar.add(2, i);
    date = calendar.getTime();
    s = simpledateformat.format(date);
    return s;
}

From source file:Main.java

public static String getNextDateByNum(String s, int i) {

    SimpleDateFormat simpledateformat = new SimpleDateFormat("yyyyMMdd");
    java.util.Date date = simpledateformat.parse(s, new ParsePosition(0));
    Calendar calendar = Calendar.getInstance();
    calendar.setTime(date);//  w  w  w.ja v  a  2  s.c  o  m
    calendar.add(5, i);
    date = calendar.getTime();
    s = simpledateformat.format(date);
    return s;
}