Java SQL Date getFirstDayOfNextMonth()

Description

get First Day Of Next Month

License

Apache License

Declaration

public static String getFirstDayOfNextMonth() 

Method Source Code

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

import java.text.SimpleDateFormat;
import java.util.*;

public class Main {
    static SimpleDateFormat sdfShort = new SimpleDateFormat("yyyyMMdd");

    public static String getFirstDayOfNextMonth() {
        try {/* w  ww  .j  ava 2 s .com*/
            return increaseYearMonth(getNowShortDate().substring(0, 6)) + "01";
        } catch (Exception e) {
            return "";
        }
    }

    public static String increaseYearMonth(String yearMonth) {
        int year = (new Integer(yearMonth.substring(0, 4))).intValue();
        int month = (new Integer(yearMonth.substring(4, 6))).intValue();
        month = month + 1;
        if (month <= 12 && month >= 10)
            return yearMonth.substring(0, 4) + (new Integer(month)).toString();
        else if (month < 10)
            return yearMonth.substring(0, 4) + "0" + (new Integer(month)).toString();
        else
            //if(month>12)
            return (new Integer(year + 1)).toString() + "0" + (new Integer(month - 12)).toString();

    }

    public static String increaseYearMonth(String yearMonth, int addMonth) {
        int year = (new Integer(yearMonth.substring(0, 4))).intValue();
        int month = (new Integer(yearMonth.substring(4, 6))).intValue();
        month = month + addMonth;
        year = year + month / 12;
        month = month % 12;
        if (month <= 12 && month >= 10)
            return year + (new Integer(month)).toString();
        else
            return year + "0" + (new Integer(month)).toString();

    }

    public static String getNowShortDate() throws Exception {
        String nowDate = "";
        try {
            java.sql.Date date = null;
            date = new java.sql.Date(new Date().getTime());
            nowDate = sdfShort.format(date);
            return nowDate;
        } catch (Exception e) {
            throw e;
        }
    }

    /**
     * Returns a string the represents the passed-in date parsed
     * according to the passed-in format.  Returns an empty string
     * if the date or the format is null.
    **/
    public static String format(Date aDate, SimpleDateFormat aFormat) {
        if (aDate == null || aFormat == null) {
            return "";
        }
        synchronized (aFormat) {
            return aFormat.format(aDate);
        }
    }
}

Related

1. getCurrentYear()
2. getDayOfPerMonth(String theDataStr)
3. getDiffDays(String begin_dt, String end_dt)
4. getEndWeekDayOfMonth(String year, String month)
5. getFileName()
6. getFirstDayOfThisMonth()
7. getInsertarEmpleado()
8. getInsertarEntrada()
9. getIntervalDays(String sd, String ed)