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:MainClass.java

public static void main(String[] args) {

    // get a calendar using the default time zone and locale.
    Calendar calendar = Calendar.getInstance();

    // set Date portion to January 1, 1970
    calendar.set(Calendar.YEAR, 1970);
    calendar.set(Calendar.MONTH, Calendar.JANUARY);
    calendar.set(Calendar.DATE, 1);

    // normalize the object
    calendar.set(Calendar.HOUR_OF_DAY, 0);
    calendar.set(Calendar.MINUTE, 0);
    calendar.set(Calendar.SECOND, 0);
    calendar.set(Calendar.MILLISECOND, 0);

    java.sql.Date javaSqlDate = new java.sql.Date(calendar.getTime().getTime());
}

From source file:MainClass.java

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

    // Display just hour and minute. 
    fmt = new Formatter();
    fmt.format("%tl:%tM", cal, cal);
    System.out.println(fmt);/*from   ww w .  j  av a  2s  .com*/

}

From source file:Main.java

public static void main(String[] args) {
    String dayNames[] = new DateFormatSymbols().getWeekdays();
    Calendar date2 = Calendar.getInstance();
    System.out.println("Today is a " + dayNames[date2.get(Calendar.DAY_OF_WEEK)]);
}

From source file:Main.java

public static void main(String args[]) {
    Formatter fmt = new Formatter();
    Calendar cal = Calendar.getInstance();
    fmt = new Formatter();
    fmt.format("Default locale: %tc\n", cal);

    fmt.format(Locale.GERMAN, "For Locale.GERMAN: %tc\n", cal);
    fmt.format(Locale.ITALY, "For Locale.ITALY: %tc\n", cal);
    fmt.format(Locale.FRANCE, "For Locale.FRANCE: %tc\n", cal);
    System.out.println(fmt);//w  ww .j a  va2 s  .  com
}

From source file:MainClass.java

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

    // Display month by name and number. 
    fmt = new Formatter();
    fmt.format("%tB %tb %tm", cal, cal, cal);
    System.out.println(fmt);//from  w  w  w  . jav a  2  s . c o  m
}

From source file:Main.java

public static void main(String args[]) {
    Calendar now = Calendar.getInstance();
    Locale locale = Locale.getDefault();

    Map<String, Integer> names = now.getDisplayNames(Calendar.DAY_OF_WEEK, Calendar.LONG, locale);
    SortedMap<String, Integer> nav = new TreeMap<String, Integer>(names);
    System.out.printf("Whole list:%n%s%n", nav);
    System.out.printf("First key: %s\tFirst entry: %s%n", nav.firstKey(), nav.firstEntry());
}

From source file:Main.java

public static void main(String[] args) {
    Calendar calendar = Calendar.getInstance();
    calendar.setTime(new Date());

    calendar.set(Calendar.DAY_OF_MONTH, 1);
    // day of week for first date of month
    int weekOfFirstDate = calendar.get(Calendar.WEEK_OF_YEAR);

    int lastDateOfMonth = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);
    calendar.set(Calendar.DAY_OF_MONTH, lastDateOfMonth);
    // day of week for last date of month

    int weekOfLastDate = calendar.get(Calendar.WEEK_OF_YEAR);

    calendar.roll(Calendar.MONTH, false);
    int lastDateOfPrevMonth = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);

    int weeksToDisplay = weekOfLastDate - weekOfFirstDate + 1;
    int[] days = new int[weeksToDisplay * 7];

    int firstDayPosition = 3;

    // fill previous month
    int x = lastDateOfPrevMonth;
    for (int i = firstDayPosition - 1; i >= 0; i--) {
        days[i] = x--;/*from   ww w. j  a va 2s .c o  m*/
    }

    // fill current month
    for (int i = 1; i < lastDateOfMonth + 1; i++) {
        days[firstDayPosition - 1 + i] = i;
    }

    // fill next month
    int j = 1;
    for (int i = lastDateOfMonth + firstDayPosition; i < days.length; i++) {
        days[i] = j++;
    }

    for (int i = 0; i < days.length; i++) {
        if (i % 7 == 0) {
            System.out.println();
        }
        System.out.print(days[i] + "\t");
    }
}

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);/*from  www.  ja  va2s.  c  o  m*/
    System.out.println(df.format(c.getTime()));
}

From source file:Main.java

public static void main(String args[]) {
    Calendar now = Calendar.getInstance();
    Locale locale = Locale.getDefault();

    Map<String, Integer> names = now.getDisplayNames(Calendar.DAY_OF_WEEK, Calendar.LONG, locale);
    NavigableMap<String, Integer> nav = new TreeMap<String, Integer>(names);
    System.out.printf("Whole list:%n%s%n", nav);
    System.out.printf("Key higher after Sunday: %s%n", nav.higherKey("Sunday"));
}

From source file:Main.java

public static void main(String args[]) {
    Calendar now = Calendar.getInstance();
    Locale locale = Locale.getDefault();

    Map<String, Integer> names = now.getDisplayNames(Calendar.DAY_OF_WEEK, Calendar.LONG, locale);
    NavigableMap<String, Integer> nav = new TreeMap<String, Integer>(names);
    System.out.printf("Whole list:%n%s%n", nav);
    System.out.printf("Map before Sunday: %s%n", nav.navigableKeySet());
}