Java SQL Date Add addDate(int add, java.util.Date d)

Description

add Date

License

Open Source License

Declaration

public static Date addDate(int add, java.util.Date d) 

Method Source Code

//package com.java2s;
import java.sql.Date;

import java.text.*;
import java.util.Calendar;

import java.util.TimeZone;

public class Main {
    public static final String DEFAULT_DATE_YMD_FORMAT = "yyyy-MM-dd";
    public static final String DEFAULT_CHAR_DATE_YMD_FORMAT = "yyyyMMdd";

    public static Date addDate(int add, java.util.Date d) {
        return addDate(add, new Date(d.getTime()));
    }//from w w  w  .  j av  a  2s . c  o  m

    public static Date addDate(int add, Date d) {

        if (d == null) {
            return null;
        }

        Calendar cal = Calendar.getInstance();
        cal.setTime((java.util.Date) d);
        cal.setTimeZone(TimeZone.getDefault());
        cal.add(Calendar.DAY_OF_MONTH, add);

        return new Date(cal.getTime().getTime());
    }

    public static String addDate(int add, String sDate) {

        if (sDate.length() < 8) {
            return null;
        }

        return formatDate(addDate(add, formatCharDateYMD(sDate, DEFAULT_CHAR_DATE_YMD_FORMAT)),
                DEFAULT_CHAR_DATE_YMD_FORMAT);
    }

    public static String formatDate(java.util.Date value, String pattern) {
        TimeZone tz = TimeZone.getDefault();
        SimpleDateFormat sdf = new SimpleDateFormat(pattern);
        sdf.setTimeZone(tz);

        return sdf.format(value);
    }

    public static Date formatCharDateYMD(String str) {
        return formatCharDateYMD(str, DEFAULT_DATE_YMD_FORMAT);
    }

    public static Date formatCharDateYMD(String str, String format) {

        if (str == null || str.trim().length() == 0) {
            return null;
        }

        if (format == null) {
            throw new IllegalArgumentException("The value of an argument is inaccurate.");
        }

        SimpleDateFormat sdf = new SimpleDateFormat(format);

        ParsePosition pos = new ParsePosition(0);

        java.util.Date date = sdf.parse(str, pos);

        if (date == null) {
            return null;
        }
        return new Date(date.getTime());
    }

    public static Date formatCharDateYMD(String yy, String mm, String dd) {

        if (yy == null || mm == null || dd == null || yy.trim().length() == 0 || mm.trim().length() == 0
                || dd.trim().length() == 0) {
            return null;
        }
        return formatCharDateYMD(yy + "-" + (mm != null && mm.length() == 1 ? "0" + mm : mm) + "-"
                + (dd != null && dd.length() == 1 ? "0" + dd : dd));
    }
}

Related

1. add(Date date, int unit, int amount)
2. addDate(java.util.Date date, int day)
3. addDate(String date)
4. addDays(Date date, int days)
5. addDaysToSQLDate(java.sql.Date date, int days)