Example usage for java.util Calendar getInstance

Introduction

In this page you can find the example usage for java.util Calendar getInstance.

Prototype

public static Calendar getInstance()

Source Link

Document

Gets a calendar using the default time zone and locale.

Usage

From source file:Main.java

public static void main(String[] args) {

    Date today = new Date();

    Calendar calendar = Calendar.getInstance();
    calendar.setTime(today);//  ww w. j a  v 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:Main.java

public static void main(String[] args) {
    String[] months = { "January", "February", "March", "April", "May", "June", "July", "August", "September",
            "October", "November", "December" };

    Calendar cal = Calendar.getInstance();
    String month = months[cal.get(Calendar.MONTH)];
    System.out.println("Month name: " + month);
}

From source file:Main.java

public static void main(String[] args) {
    String[] monthName = { "January", "February", "March", "April", "May", "June", "July", "August",
            "September", "October", "November", "December" };

    Calendar cal = Calendar.getInstance();
    String month = monthName[cal.get(Calendar.MONTH)];

    System.out.println("Month name: " + month);
}

From source file:Today.java

public static void main(String[] args) {
    Calendar cal = Calendar.getInstance();
    cal.set(HOUR_OF_DAY, 0);/*from w  w w  .j a va2s .  co m*/
    cal.set(MINUTE, 0);
    cal.set(SECOND, 0);
    cal.set(MILLISECOND, 0);
    System.out.println(cal.getTime());
}

From source file:MainClass.java

public static void main(String args[]) {
    Formatter fmt = new Formatter();
    Calendar cal = Calendar.getInstance();

    fmt.format("%tr", cal);
    System.out.println(fmt);/* w  w w  .j  a  v a 2s  .  c  o  m*/

    fmt = new Formatter();
    fmt.format("%tc", cal);
    System.out.println(fmt);

    fmt = new Formatter();
    fmt.format("%tl:%tM", cal, cal);
    System.out.println(fmt);

    fmt = new Formatter();
    fmt.format("%tB %tb %tm", cal, cal, cal);
    System.out.println(fmt);
}

From source file:Main.java

public static void main(String[] args) {
    DateFormat formatter = new SimpleDateFormat("dd/MM/yyyy hh:mm:ss.SSS");

    long now = System.currentTimeMillis();

    Calendar calendar = Calendar.getInstance();
    calendar.setTimeInMillis(now);//w  w w . java 2  s.c om

    System.out.println(now + " = " + formatter.format(calendar.getTime()));
}

From source file:Main.java

public static void main(String[] args) {

    DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:00Z");
    Calendar cal = Calendar.getInstance();
    cal.set(Calendar.YEAR, 2015);
    cal.set(Calendar.MONTH, Calendar.SEPTEMBER);
    cal.set(Calendar.DATE, 1);/*from  w  ww .  java 2  s .c  om*/
    cal.set(Calendar.HOUR_OF_DAY, 12);
    cal.set(Calendar.MINUTE, 15);
    Date date = cal.getTime();
    System.out.println(date);
    TimeZone tz = TimeZone.getTimeZone("IST");
    dateFormat.setTimeZone(tz);
    String actual = dateFormat.format(date);

    System.out.println(actual);
}

From source file:Main.java

public static void main(String[] args) {
    Calendar first = Calendar.getInstance();
    first.set(2008, Calendar.AUGUST, 1);
    Calendar second = Calendar.getInstance();

    System.out.println(getDifference(first, second, TimeUnit.DAYS) + " day(s) between ");
}

From source file:Main.java

public static void main(String[] argv) {

    Instant instantFromDate = new Date().toInstant();

    Instant instantFromCalendar = Calendar.getInstance().toInstant();
    System.out.println(instantFromCalendar);

    ZoneId zoneId = java.util.TimeZone.getDefault().toZoneId();
    System.out.println(zoneId);/*www .j  a va2  s .  c  om*/

    ZonedDateTime zonedDateTimeFromGregorianCalendar = new GregorianCalendar().toZonedDateTime();

    System.out.println(zonedDateTimeFromGregorianCalendar);
}

From source file:J2METimeServer.java

public static void main(String[] args) {

    try {/* ww w.j a v  a  2  s  .co  m*/
        Calendar cal = Calendar.getInstance();
        DatagramConnection receiver = (DatagramConnection) Connector.open("datagram://");
        byte[] buffer = new byte[256];
        Datagram dgram = receiver.newDatagram(buffer, buffer.length);
        for (;;) {
            dgram.setLength(buffer.length);
            receiver.receive(dgram);
            cal.setTime(new Date());
            String time = cal.toString();
            byte[] dataBytes = time.getBytes();
            System.arraycopy(dataBytes, 0, buffer, 0, dataBytes.length);
            dgram.setLength(dataBytes.length);
            receiver.send(dgram);
        }
    } catch (IOException ex) {
        System.out.println("IOException: " + ex);
    }
}