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 int getDaysOfMonth(int year, int month) {
    Calendar cal = Calendar.getInstance();
    cal.set(Calendar.YEAR, year);
    cal.set(Calendar.MONTH, month - 1);
    int days = cal.getActualMaximum(Calendar.DAY_OF_MONTH);
    return days;/*from   www. ja  va2 s  .c  om*/
}

From source file:Main.java

public static String getDateString(long millitm) {
    Calendar cal = Calendar.getInstance();
    cal.setTimeInMillis(millitm);//  w  w  w. ja  va  2  s .  co  m
    return (setZeroPad(cal.get(Calendar.YEAR)) + "/" + setZeroPad(cal.get(Calendar.MONTH)) + "/"
            + setZeroPad(cal.get(Calendar.DATE)) + " " + setZeroPad(cal.get(Calendar.HOUR_OF_DAY)) + ":"
            + setZeroPad(cal.get(Calendar.MINUTE)) + ":" + setZeroPad(cal.get(Calendar.SECOND)));
}

From source file:Main.java

public static long getTimeMillisAt(int hour, int minute) {
    Calendar today = Calendar.getInstance();
    today.set(Calendar.HOUR_OF_DAY, hour);
    today.set(Calendar.MINUTE, minute);
    return today.getTimeInMillis();
}

From source file:Main.java

public static int getMonthOfDays(int year, int month) {
    Calendar calendar = Calendar.getInstance();
    calendar.set(Calendar.YEAR, year);
    calendar.set(Calendar.MONTH, month);
    return calendar.getActualMaximum(Calendar.DATE);
}

From source file:Main.java

public static int getDayOfYear() {
    return Calendar.getInstance().get(Calendar.DAY_OF_YEAR);
}

From source file:Main.java

public static Calendar getCalendarClearMinuteByNow() {
    Calendar calendar = Calendar.getInstance();
    calendar.set(Calendar.MINUTE, 0);
    calendar.set(Calendar.SECOND, 0);
    calendar.set(Calendar.MILLISECOND, 0);
    return calendar;
}

From source file:Main.java

public static Date getNextDate(int days) {
    Calendar c = Calendar.getInstance();
    c.add(Calendar.DAY_OF_WEEK, days);
    return c.getTime();
}

From source file:Main.java

public static long getBeginOfCurrentDateInMillis() {
    Calendar calendar = Calendar.getInstance();
    calendar.clear(Calendar.HOUR);
    calendar.clear(Calendar.HOUR_OF_DAY);
    calendar.clear(Calendar.MINUTE);
    calendar.clear(Calendar.SECOND);
    calendar.clear(Calendar.MILLISECOND);
    return calendar.getTimeInMillis();
}

From source file:Main.java

public static boolean isTaday(Long time) {
    Calendar calendar_cur = Calendar.getInstance();
    Calendar calendar_old = Calendar.getInstance();
    calendar_old.setTimeInMillis(time);//from  w w w . ja v  a  2 s .c om
    int day_cur = calendar_cur.get(Calendar.DAY_OF_YEAR);
    int day_old = calendar_old.get(Calendar.DAY_OF_YEAR);
    if (day_cur == day_old) {
        return true;
    } else {
        return false;
    }
}

From source file:Main.java

public static long getUTCTime() {
    Calendar cal = Calendar.getInstance();
    cal.setTimeZone(TimeZone.getTimeZone("gmt"));
    return cal.getTimeInMillis();
}