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 void main(String args[]) {
    Calendar cal1 = Calendar.getInstance();
    Calendar cal2 = Calendar.getInstance();
    cal2.add(Calendar.HOUR, 2);
    cal2.add(Calendar.MINUTE, 42);
    cal2.add(Calendar.SECOND, 12);
    long secs = (cal2.getTimeInMillis() - cal1.getTimeInMillis()) / 1000;
    String display = String.format("%02d:%02d:%02d", secs / 3600, (secs % 3600) / 60, (secs % 60));
    System.out.println(display);/* w ww  .  j  a  va2  s.c  o  m*/

}

From source file:Main.java

public static void main(String[] args) {
    Date today = new Date();

    Calendar calendar = Calendar.getInstance();
    calendar.add(Calendar.DATE, 1);
    Date tomorrow = calendar.getTime();

    if (tomorrow.after(today)) {
        System.out.println(tomorrow + " is after " + today);
    }/*from   w  ww  .  j a v  a2 s. c  om*/
}

From source file:Main.java

public static void main(String[] args) {
    Date today = new Date();

    Calendar calendar = Calendar.getInstance();
    calendar.add(Calendar.DATE, -1);
    Date yesterday = calendar.getTime();

    if (yesterday.before(today)) {
        System.out.println(yesterday + " is before " + today);
    }/*from  w  w  w  . java 2  s.c  o m*/
}

From source file:Main.java

public static void main(String[] args) {

    Calendar today = new GregorianCalendar();
    Calendar purchased = new GregorianCalendar();

    purchased.add(Calendar.DAY_OF_MONTH, 1);

    Calendar lastActDate = new GregorianCalendar();
    lastActDate.setTimeInMillis(today.getTimeInMillis() - purchased.getTimeInMillis());
}

From source file:Main.java

public static void main(String[] args) {
    Date d1 = new Date();
    Calendar cal = Calendar.getInstance();
    cal.add(Calendar.DATE, 22);
    Date d2 = cal.getTime();//from   www .ja  v  a  2  s  . c o  m

    Iterator<Date> i = new DateIterator(d1, d2);
    while (i.hasNext()) {
        Date date = i.next();
        System.out.println(date);
    }
}

From source file:MainClass.java

public static void main(String[] args) {
    JFrame frame = new JFrame();

    Calendar now = Calendar.getInstance();
    Calendar earliest = (Calendar) now.clone();
    earliest.add(Calendar.MONTH, -6);
    Calendar latest = (Calendar) now.clone();
    latest.add(Calendar.MONTH, 6);
    SpinnerModel model = new SpinnerDateModel(now.getTime(), earliest.getTime(), latest.getTime(),
            Calendar.WEEK_OF_YEAR);
    final JSpinner spinner = new JSpinner(model);

    model.addChangeListener(new ChangeListener() {
        public void stateChanged(ChangeEvent e) {
            System.out.println(((SpinnerDateModel) e.getSource()).getDate());
        }//from   ww w .ja  v  a  2s  .  c om
    });

    frame.getContentPane().add("North", new JLabel("Choose a week"));
    frame.getContentPane().add("Center", spinner);
    frame.pack();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setVisible(true);
}

From source file:Main.java

public static void main(String[] args) {
    Calendar now = Calendar.getInstance();
    // add seconds to current date
    now.add(Calendar.SECOND, 500);
    System.out.println("adding 500 seconds : ");
    System.out.println(now.get(Calendar.MINUTE) + ":" + now.get(Calendar.SECOND));

    // adding minus value
    now = Calendar.getInstance();
    now.add(Calendar.SECOND, -500);
    System.out.println("adding -500 seconds: ");
    System.out.println(now.get(Calendar.MINUTE) + ":" + now.get(Calendar.SECOND));
}

From source file:Main.java

public static void main(String... args) {

    SimpleDateFormat df = new SimpleDateFormat("MM/dd/YYYY");

    Calendar c = Calendar.getInstance();
    System.out.println(df.format(c.getTime()));

    c.add(Calendar.YEAR, 60);
    System.out.println(df.format(c.getTime()));
}

From source file:Main.java

public static void main(String[] args) {

    Date today = new Date();

    Calendar calendar = Calendar.getInstance();
    calendar.setTime(today);//from   w w  w .j av  a  2  s.  co  m

    calendar.add(Calendar.MONTH, 1);
    calendar.set(Calendar.DAY_OF_MONTH, 1);
    calendar.add(Calendar.DATE, -1);

    Date lastDayOfMonth = calendar.getTime();

    DateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
    System.out.println("Today            : " + sdf.format(today));
    System.out.println("Last Day of Month: " + sdf.format(lastDayOfMonth));
}

From source file:SpinnerDateStartEndSample.java

public static void main(String args[]) {
    JFrame frame = new JFrame("JSpinner Sample");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    Calendar cal = Calendar.getInstance();
    Date now = cal.getTime();/*  www.  j  av  a  2 s.  co  m*/
    cal.add(Calendar.YEAR, -50);
    Date startDate = cal.getTime();
    cal.add(Calendar.YEAR, 100);
    Date endDate = cal.getTime();
    SpinnerModel model = new SpinnerDateModel(now, startDate, endDate, Calendar.YEAR);

    JSpinner spinner1 = new JSpinner(model);

    JPanel panel1 = new JPanel(new BorderLayout());
    panel1.add(spinner1, BorderLayout.CENTER);
    frame.add(panel1, BorderLayout.SOUTH);

    frame.setSize(200, 90);
    frame.setVisible(true);
}