Java Month Day getMonthEndDay(String yyyy, String mm)

Description

get Month End Day

License

Apache License

Declaration

public static String getMonthEndDay(String yyyy, String mm) throws ParseException 

Method Source Code

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

import java.text.ParseException;
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 getMonthEndDay(String yyyy, String mm) throws ParseException {
        if (yyyy == null || yyyy.trim().equals("")) {
            yyyy = getYear();/*  www . java 2 s  .  c  o m*/
        }

        if (mm == null || mm.trim().equals("")) {
            mm = getMonth();
        }

        int year = Integer.parseInt(yyyy);
        int month = Integer.parseInt(mm);
        int day = 0;

        String endDay = "";

        Calendar cal = new GregorianCalendar();
        cal.set(year, month, 0);

        year = cal.get(cal.YEAR);
        month = cal.get(cal.MONTH) + 1;
        day = cal.getActualMaximum(cal.DAY_OF_MONTH);

        endDay = year + String.format("%02d", month) + String.format("%02d", day);

        return endDay;
    }

    public static String getYear() throws ParseException {
        Date date = new Date();
        SimpleDateFormat formatter;
        String pattern = "yyyy";
        formatter = new SimpleDateFormat(pattern, new Locale("ko", "KOREA"));

        return formatter.format(date);
    }

    public static String getMonth() throws ParseException {
        Date date = new Date();
        SimpleDateFormat formatter;
        String pattern = "MM";
        formatter = new SimpleDateFormat(pattern, new Locale("ko", "KOREA"));

        return formatter.format(date);
    }
}

Related

1. getLastMonthLastDay()
2. getLastMothStart()
3. GetLastWorkDayofMonth(String strDateStart)
4. getMonthDay(int year, int month)
5. getMonthEndDay(String time)
6. getMonthFirstDay()
7. getMonthFirstDay()
8. getMonthFirstDay(Date date)
9. getMonthFirstDay(String date)