Example usage for java.util GregorianCalendar GregorianCalendar

Introduction

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

Prototype

public GregorianCalendar()

Source Link

Document

Constructs a default GregorianCalendar using the current time in the default time zone with the default Locale.Category#FORMAT FORMAT locale.

Usage

From source file:Main.java

public static XMLGregorianCalendar asXMLGregorianCalendar(java.util.Date date) {
    if (date == null) {
        return null;
    } else {//from   w ww.  j ava2s. c o  m
        GregorianCalendar calendar = new GregorianCalendar();
        calendar.setTime(date);

        XMLGregorianCalendar xmlGregorianCalendar = df.newXMLGregorianCalendar();
        xmlGregorianCalendar.setDay(calendar.get(Calendar.DAY_OF_MONTH));
        xmlGregorianCalendar.setMonth(calendar.get(Calendar.MONTH));
        xmlGregorianCalendar.setYear(calendar.get(Calendar.YEAR));

        return xmlGregorianCalendar;
    }
}

From source file:Main.java

/**
 * Returns the year (index 0), month (index 1) and day (index 2) of the given timestamp.
 * @param timestamp the timestamp//www .jav  a2  s  .  c  o  m
 * @return the year (index 0), month (index 1) and day (index 2) of the given timestamp
 */
public static int[] getDayMonthYear(long timestamp) {
    GregorianCalendar gregorianCalendar = new GregorianCalendar();
    gregorianCalendar.setTimeInMillis(timestamp);

    int day = gregorianCalendar.get(Calendar.DAY_OF_MONTH);
    int month = gregorianCalendar.get(Calendar.MONTH) + 1;
    int year = gregorianCalendar.get(Calendar.YEAR);

    return new int[] { year, month, day };
}

From source file:Main.java

public static String getStringByOffset(String strDate, String format, int calendarField, int offset) {
    String mDateTime = null;// w w  w.j  ava  2s  .c  o  m
    try {
        Calendar c = new GregorianCalendar();
        SimpleDateFormat mSimpleDateFormat = new SimpleDateFormat(format, Locale.CHINA);
        c.setTime(mSimpleDateFormat.parse(strDate));
        c.add(calendarField, offset);
        mDateTime = mSimpleDateFormat.format(c.getTime());
    } catch (ParseException e) {
        e.printStackTrace();
    }
    return mDateTime;
}

From source file:Main.java

public static XMLGregorianCalendar longToXMLGregorianCalendar(long time) throws DatatypeConfigurationException {
    if (time <= 0) {
        return null;
    }//w  w w.j  a v a2 s .  c om

    GregorianCalendar cal = new GregorianCalendar();
    cal.setTimeInMillis(time);
    XMLGregorianCalendar newXMLGregorianCalendar = DatatypeFactory.newInstance().newXMLGregorianCalendar(cal);
    return newXMLGregorianCalendar;
}

From source file:Main.java

/**
 * Convenience method to format a Date as an XML DateTime String.
 *
 * @param date/*from  w ww  . j  a  v a2  s .c  o  m*/
 *            the date to format.
 * @return the XML representation as a string.
 */
public static String formatDate(final Date date) {
    GregorianCalendar calendar = new GregorianCalendar();
    calendar.setTimeInMillis(date.getTime());
    return formatGregorianCalendar(calendar);
}

From source file:Main.java

private static String getDayOfWeek(String format, int calendarField) {
    String strDate = null;/*from   ww w. jav a  2s .c  o m*/
    try {
        Calendar c = new GregorianCalendar();
        SimpleDateFormat mSimpleDateFormat = new SimpleDateFormat(format, Locale.CHINA);
        int week = c.get(Calendar.DAY_OF_WEEK);
        if (week == calendarField) {
            strDate = mSimpleDateFormat.format(c.getTime());
        } else {
            int offectDay = calendarField - week;
            if (calendarField == Calendar.SUNDAY) {
                offectDay = 7 - Math.abs(offectDay);
            }
            c.add(Calendar.DATE, offectDay);
            strDate = mSimpleDateFormat.format(c.getTime());
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return strDate;
}

From source file:Main.java

/**
 * Method to check if a date is tomorrow
 * //from   w ww  . j ava 2s .  c  o  m
 * @param theDate
 *            the date to see if it is tomorrow
 * @return true of it is tomorrow
 */
public static boolean isTomorrow(Date theDate) {
    // Get a calendar with the events start time
    GregorianCalendar theCalendar = new GregorianCalendar();
    theCalendar.setTime(theDate);
    // Get a calendar with current system time and change its value so it
    // can be used in comparison with the given date.
    Calendar tmpDate = Calendar.getInstance();
    tmpDate.roll(Calendar.DAY_OF_YEAR, true);

    return tmpDate.get(Calendar.YEAR) == theCalendar.get(Calendar.YEAR)
            && tmpDate.get(Calendar.DAY_OF_YEAR) == theCalendar.get(Calendar.DAY_OF_YEAR);
}

From source file:Main.java

/**
 * returns the string representation of the current date in the appropriate format for the URL
 * @return string representation of the current date
 *//* ww w. j a  v  a 2  s  .  c o m*/
public static String getTodayUrlTimeString() {
    return getUrlTimeString(new GregorianCalendar());
}

From source file:Main.java

public static String date2String(Date date, boolean printTime) {
    Calendar cal = new GregorianCalendar();
    cal.setTime(date);/*from   w ww.  j a  v  a2s  .c o  m*/
    if (cal.get(Calendar.YEAR) > 10000) {
        return "---";
    }
    return makeTimeString(cal.get(Calendar.DAY_OF_MONTH), 2) + "."
            + makeTimeString(cal.get(Calendar.MONTH) + 1, 2) + "." + makeTimeString(cal.get(Calendar.YEAR), 4)
            + (printTime
                    ? " " + makeTimeString(cal.get(Calendar.HOUR_OF_DAY), 2) + ":"
                            + makeTimeString(cal.get(Calendar.MINUTE), 2) + ":"
                            + makeTimeString(cal.get(Calendar.SECOND), 2)
                    : "");
}

From source file:Main.java

public static int monthsBetweenDates(String start, String end) throws ParseException {
    SimpleDateFormat format = new SimpleDateFormat("MMMM, yyyy", Locale.getDefault());
    Date startDate = format.parse(start);
    Date endDate = format.parse(end);

    Calendar startCalendar = new GregorianCalendar();
    startCalendar.setTime(startDate);//from   w  w  w.  ja v a  2s  .c  o  m
    Calendar endCalendar = new GregorianCalendar();
    endCalendar.setTime(endDate);

    int diffYear = endCalendar.get(Calendar.YEAR) - startCalendar.get(Calendar.YEAR);
    return diffYear * 12 + endCalendar.get(Calendar.MONTH) - startCalendar.get(Calendar.MONTH);
}