Java Day in Month getMonthDayString(long l, boolean timezone, boolean formated)

Description

get Month Day String

License

LGPL

Declaration

public static String getMonthDayString(long l, boolean timezone, boolean formated) 

Method Source Code

//package com.java2s;
//License from project: LGPL 

public class Main {
    private static long accmulated_timemillis_year[];
    private static long accmulated_timemillis_month[];
    private static long accmulated_timemillis_month_leapyear[];
    private static long accmulated_timemillis_2002 = 0L;
    private static int timeZoneOffset = 0;
    static final char DigitTens[] = { '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '1', '1', '1', '1', '1',
            '1', '1', '1', '1', '1', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '3', '3', '3', '3', '3', '3',
            '3', '3', '3', '3', '4', '4', '4', '4', '4', '4', '4', '4', '4', '4', '5', '5', '5', '5', '5', '5', '5',
            '5', '5', '5', '6', '6', '6', '6', '6', '6', '6', '6', '6', '6', '7', '7', '7', '7', '7', '7', '7', '7',
            '7', '7', '8', '8', '8', '8', '8', '8', '8', '8', '8', '8', '9', '9', '9', '9', '9', '9', '9', '9', '9',
            '9' };
    static final char DigitOnes[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4',
            '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5',
            '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6',
            '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7',
            '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8',
            '9' };

    public static String getMonthDayString(long l, boolean timezone, boolean formated) {
        if (timezone)
            l += timeZoneOffset;/*  ww  w  .  j a va  2 s .c om*/
        if (l < 0L)
            return formated ? "01-01" : "0101";
        if (l > accmulated_timemillis_year[229])
            return formated ? "12-31" : "1231";
        int year = 9999;
        int mon = 0;
        boolean leap_year = false;
        if (l > accmulated_timemillis_2002) {
            for (int y = 2003; y < 2199; y++) {
                if (l >= accmulated_timemillis_year[y - 1970])
                    continue;
                year = y;
                break;
            }

        } else {
            for (int y = 1970; y < 2200; y++) {
                if (l >= accmulated_timemillis_year[y - 1970])
                    continue;
                year = y;
                break;
            }

        }
        if (year > 1970)
            l -= accmulated_timemillis_year[year - 1970 - 1];
        if (isLeapYear(year)) {
            for (int m = 0; m < 12; m++) {
                if (l >= accmulated_timemillis_month_leapyear[m])
                    continue;
                mon = m;
                if (m > 0)
                    l -= accmulated_timemillis_month_leapyear[m - 1];
                break;
            }

        } else {
            for (int m = 0; m < 12; m++) {
                if (l >= accmulated_timemillis_month[m])
                    continue;
                mon = m;
                if (m > 0)
                    l -= accmulated_timemillis_month[m - 1];
                break;
            }

        }
        int day = (int) (l * 0x31b5d43bL >>> 56);
        l -= (long) day * 0x5265c00L;
        char buf[] = formated ? new char[5] : new char[4];
        if (formated) {
            buf[0] = DigitTens[++mon];
            buf[1] = DigitOnes[mon];
            buf[2] = '-';
            buf[3] = DigitTens[++day];
            buf[4] = DigitOnes[day];
        } else {
            buf[0] = DigitTens[++mon];
            buf[1] = DigitOnes[mon];
            buf[2] = DigitTens[++day];
            buf[3] = DigitOnes[day];
        }
        return new String(buf);
    }

    private static boolean isLeapYear(int year) {
        return year % 4 == 0 && (year % 100 != 0 || year % 400 == 0);
    }
}

Related

1. getMaxMonthDay(int year, int month)
2. getMonthDay(int year, int month)
3. getMonthDayFormats()
4. getMonthDays(int year, int month)
5. getMonthDaysArray(int year)
6. getMonthlyCronExpression(int minutes, int hours, int dayOfMonth)
7. getMonthOfDayMark(int day)
8. getNumberOfDaysInMonth(Integer year, Integer month)
9. getNumberOfDaysInMonthes(int theyear)