Java Year Get getYearWeek(int year, int week)

Description

get Year Week

License

Open Source License

Parameter

Parameter	Description
year	a parameter
week	a parameter

Declaration

public static String[] getYearWeek(int year, int week) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.Locale;

public class Main {

    public static String[] getYearWeek(int year, int week) {
        String result = "";
        Calendar cal = new GregorianCalendar(Locale.CHINESE);
        SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMdd");
        Date day = new Date(year - 1900, 0, 1);
        for (int i = 0; i < 366; i++) {
            cal.setTime(day);//  www.  j ava 2  s  . c o m
            if (cal.get(Calendar.DAY_OF_WEEK) == week) {
                if (day.getYear() == year - 1900)
                    result += "/" + formatter.format(day);
            }
            day.setDate(day.getDate() + 1);
            cal.setTime(day);
        }
        return (result.split("/"));
    }

    public static String getDate() {

        Calendar calendar = Calendar.getInstance();
        String strDate = "" + calendar.get(Calendar.DATE);
        String strMonth = "" + (calendar.get(Calendar.MONTH) + 1);

        if ((calendar.get(Calendar.MONTH) + 1) > 12) {
            strMonth = "01";
        }
        String strYear = "" + calendar.get(Calendar.YEAR);

        if (strDate.length() < 2) {
            strDate = "0" + strDate;
        }
        if (strMonth.length() < 2) {
            strMonth = "0" + strMonth;
        }
        String curDate = strYear + strMonth + strDate;
        return curDate;
    }

    public static String getDate(String strYYYYMM) {

        String strDate = null;

        if (strYYYYMM.substring(4).equals("01")

                || strYYYYMM.substring(4).equals("03")

                || strYYYYMM.substring(4).equals("05")

                || strYYYYMM.substring(4).equals("07")

                || strYYYYMM.substring(4).equals("08")

                || strYYYYMM.substring(4).equals("10")

                || strYYYYMM.substring(4).equals("12"))

        {

            strDate = strYYYYMM + "31";

        }

        else

        if (strYYYYMM.substring(4).equals("04")

                || strYYYYMM.substring(4).equals("06")

                || strYYYYMM.substring(4).equals("09")

                || strYYYYMM.substring(4).equals("11"))

        {

            strDate = strYYYYMM + "30";

        }

        else

        {

            if (isLeapYear(strYYYYMM.substring(0, 4)))

            {

                strDate = strYYYYMM + "29";

            }

            else

            {

                strDate = strYYYYMM + "28";

            }

        }

        return strDate;

    }

    public static boolean isLeapYear(String strYYYY) {

        boolean bLeap = false;

        Calendar cal = Calendar.getInstance();

        bLeap = ((GregorianCalendar) cal).isLeapYear(Integer.parseInt(strYYYY));

        return bLeap;

    }
}

Related

1. getYearLongDesc(Date year)
2. getYearlyIntervals(Date start, Date end)
3. getYearName(String dateString)
4. getYearsOfAge(Date birthDate, Date nowDate)
5. getYearString()