Example usage for java.util Calendar clear

Introduction

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

Prototype

public final void clear()

Source Link

Document

Sets all the calendar field values and the time value (millisecond offset from the Epoch) of this Calendar undefined.

Usage

From source file:Main.java

public static java.util.Date getDate(int y, int m, int d, boolean inclusive) {
    java.util.Date dt = null;/* ww w . jav  a  2s  . c om*/
    Calendar c = Calendar.getInstance();
    c.clear();
    if (c.getActualMinimum(1) <= y && y <= c.getActualMaximum(1)) {
        c.set(1, y);
        if (c.getActualMinimum(2) <= m && m <= c.getActualMaximum(2)) {
            c.set(2, m);
            if (c.getActualMinimum(5) <= d && d <= c.getActualMaximum(5))
                c.set(5, d);
        }
        if (inclusive) {
            c.add(5, 1);
            c.add(14, -1);
        }
        dt = c.getTime();
    }
    return dt;
}

From source file:Main.java

public static Calendar getEmptyCalendarGreenwich() {
    Calendar calendar = Calendar.getInstance(TimeZone.getTimeZone("Etc/Greenwich"));
    calendar.clear();
    return calendar;
}

From source file:Main.java

public static Date getDate(String t, String pattern) {
    SimpleDateFormat dateFormat = new SimpleDateFormat(pattern, Locale.getDefault());
    try {/*from  w  ww  .  ja  v  a 2 s. com*/
        Date date = dateFormat.parse(t);
        Calendar calendar = Calendar.getInstance();
        calendar.clear();
        calendar.setTime(date);
        return date;
    } catch (ParseException e) {
        return null;
    }
}

From source file:Main.java

static void setDate(Calendar cal, int month, int date, boolean endOfDay) {
    cal.clear();
    cal.set(Calendar.YEAR, Calendar.getInstance().get(Calendar.YEAR));
    cal.set(Calendar.MONTH, month);
    cal.set(Calendar.DATE, date);
    if (endOfDay) {
        cal.set(Calendar.HOUR_OF_DAY, 23);
        cal.set(Calendar.MINUTE, 59);
        cal.set(Calendar.SECOND, 59);
        cal.set(Calendar.MILLISECOND, 999);
    } else {//from  w w  w . j av a 2s .  com
        cal.set(Calendar.HOUR_OF_DAY, 0);
        cal.set(Calendar.MINUTE, 0);
        cal.set(Calendar.SECOND, 0);
        cal.set(Calendar.MILLISECOND, 0);
    }
}

From source file:Main.java

/**
 * Creates a Calendar instance for the given year, month (1-based), and day
 * (1-based) in the default time zone/*from   www.  j  av  a2  s .co m*/
 */
public static Calendar createDate(int year, int month, int day) {
    Calendar date = Calendar.getInstance();
    date.clear();
    date.set(year, month - 1, day); // Months start at 0 for Calendar!
    return date;
}

From source file:org.hibersap.util.DateUtil.java

public static Date newDate(final int year, final int month, final int date, final int hourOfDay,
        final int minute, final int second) {
    Calendar cal = Calendar.getInstance();
    cal.clear();
    cal.set(year, month, date, hourOfDay, minute, second);
    return cal.getTime();
}

From source file:Main.java

/**
 * Takes a date value as used in CPLC Date fields (represented by 2 bytes)
 * /* ww w . j a  v  a  2  s  .co  m*/
 * @param paramByte1
 * @param paramByte2
 * @throws IllegalArgumentException
 * @return
 */
public static Date calculateCplcDate(byte[] dateBytes) throws IllegalArgumentException {
    if (dateBytes == null || dateBytes.length != 2) {
        throw new IllegalArgumentException("Error! CLCP Date values consist always of exactly 2 bytes");
    }
    // current time
    Calendar now = Calendar.getInstance();

    int year = now.get(Calendar.YEAR);
    int startYearOfCurrentDecade = year - (year % 10);

    int days = 100 * (dateBytes[0] & 0xF) + 10 * (0xF & dateBytes[1] >>> 4) + (dateBytes[1] & 0xF);

    if (days > 366) {
        throw new IllegalArgumentException("Invalid date (or are we parsing it wrong??)");
    }

    Calendar calculatedDate = Calendar.getInstance();
    calculatedDate.clear();
    calculatedDate.set(Calendar.YEAR, startYearOfCurrentDecade + (0xF & dateBytes[0] >>> 4));
    calculatedDate.set(Calendar.DAY_OF_YEAR, days);
    while (calculatedDate.after(now)) {
        calculatedDate.add(Calendar.YEAR, -10);
    }
    return calculatedDate.getTime();
}

From source file:Main.java

/**
 * Creates a Calendar instance for the given year, month (1-based), and day
 * (1-based) in the given time zone/*from   ww w  . j a  v a 2  s .c om*/
 */
public static Calendar createDate(TimeZone timeZone, int year, int month, int day) {
    Calendar date = Calendar.getInstance(timeZone);
    date.clear();
    date.set(year, month - 1, day); // Months start at 0 for Calendar!
    return date;
}

From source file:Main.java

/**
 * Calculates the number of days between Epoch and the given date.
 *
 * @param date the date.//  w w  w  . jav  a2  s .  co m
 * @return the number of days between Epoch and the given date.
 */
public static int daysSince1900(Date date) {
    final Calendar calendar = Calendar.getInstance();

    calendar.clear();
    calendar.set(1900, 0, 1);

    return daysBetween(calendar.getTime(), date);
}

From source file:Main.java

public static void setToFirstDay(Calendar calendar) {
    int year = getYear(calendar);
    int month = getMonth(calendar);
    calendar.clear();
    calendar.set(year, month, 1);//from   w w w. j a  v a  2s  .  c  om
}