How do I add one month to current date in Java

Question

In Java how can I add one month to the current date

User · Answer

In order to find the day after one month, it is necessary to look at what day of the month it is today.

So if the day is first day of month run following code

Calendar calendar = Calendar.getInstance();

    Calendar calFebruary = Calendar.getInstance();
    calFebruary.set(Calendar.MONTH, Calendar.FEBRUARY);

    if (calendar.get(Calendar.DAY_OF_MONTH) == 1) {// if first day of month
    calendar.add(Calendar.MONTH, 1);
    calendar.set(Calendar.DATE, calendar.getActualMinimum(Calendar.DAY_OF_MONTH));
    Date nextMonthFirstDay = calendar.getTime();
    System.out.println(nextMonthFirstDay);

    }

if the day is last day of month, run following codes.

    else if ((calendar.getActualMaximum(Calendar.DAY_OF_MONTH) == calendar.get(Calendar.DAY_OF_MONTH))) {// if last day of month
    calendar.add(Calendar.MONTH, 1);
    calendar.set(Calendar.DATE, calendar.getActualMaximum(Calendar.DAY_OF_MONTH));
    Date nextMonthLastDay = calendar.getTime();
    System.out.println(nextMonthLastDay);
    }

if the day is in february run following code

    else if (calendar.get(Calendar.MONTH) == Calendar.JANUARY
            && calendar.get(Calendar.DAY_OF_MONTH) > calFebruary.getActualMaximum(Calendar.DAY_OF_MONTH)) {// control of february

    calendar.add(Calendar.MONTH, 1);
    calendar.set(Calendar.DATE, calendar.getActualMaximum(Calendar.DAY_OF_MONTH));
    Date nextMonthLastDay = calendar.getTime();
    System.out.println(nextMonthLastDay);

    }

the following codes are used for other cases.

    else { // any day
    calendar.add(Calendar.DATE, calendar.getActualMaximum(Calendar.DAY_OF_MONTH));
    Date theNextDate = calendar.getTime();
    System.out.println(theNextDate);
    }

User · Answer

adapted from Duggu   public static Date addOneMonth Date date        Calendar cal   Calendar getInstance        cal setTime date       cal add Calendar MONTH  1       return cal getTime

User · Answer

This method returns the current date plus 1 month   public Date  addOneMonth              Calendar cal   Calendar getInstance            cal add Calendar MONTH  1           return cal getTime

User · Answer

Calendar cal   Calendar getInstance     cal add Calendar MONTH  1   java util Date dt   cal getTime

User · Answer

Use calander and try this code   Calendar calendar   Calendar getInstance             calendar add Calendar MONTH  1   calendar set Calendar DATE  calendar getActualMinimum Calendar DAY OF MONTH    Date nextMonthFirstDay   calendar getTime    calendar set Calendar DATE  calendar getActualMaximum Calendar DAY OF MONTH    Date nextMonthLastDay   calendar getTime

User · Answer

public Date  addMonths String dateAsString  int nbMonths  throws ParseException           String format    MM dd yyyy            SimpleDateFormat sdf   new SimpleDateFormat format            Date dateAsObj   sdf parse dateAsString            Calendar cal   Calendar getInstance            cal setTime dateAsObj           cal add Calendar MONTH  nbMonths           Date dateAsObjAfterAMonth   cal getTime         System out println sdf format dateAsObjAfterAMonth        return dateAsObjAfterAMonth

User · Answer

Date dateAfterOneMonth   new DateTime System currentTimeMillis    plusMonths 1  toDate

User · Answer

You can make use of apache s commons lang DateUtils helper utility class   Date newDate   DateUtils addMonths new Date    1     You can download commons lang jar at http   commons apache org proper commons-lang

User · Answer

public class StringSplit        public static void main String   args               TODO Auto-generated method stub          date 5  3           date 5  4              public static String date int month  int week            LocalDate futureDate   LocalDate now   plusMonths month  plusWeeks week           String Fudate   futureDate toString            String   arr   Fudate split  -   3           String a1   arr 0           String a2   arr 1           String a3   arr 2           String date   a3         a2         a1          System out println date           return date            Output   10 03 2020 17 03 2020

User · Answer

If you need a one-liner  i e  for Jasper Reports formula  and don t mind if the adjustment is not exactly one month  i e  30 days  is enough      new Date  F invoicedate  getTime     30L   24L   60L   60L   1000L

User · Answer

You can use like this   SimpleDateFormat sdf   new SimpleDateFormat  yyyy-MM-dd    String d    2000-01-30   Date date  new Date sdf parse d  getTime     date setMonth date getMonth     1

User · Answer

Java 8  LocalDate futureDate   LocalDate now   plusMonths 1

User · Answer

you can use DateUtils class in org apache commons lang3 time package  DateUtils addMonths new Date   1

User · Answer

Calendar cal   Calendar getInstance     cal add Calendar MONTH  1

User · Answer

tl dr  LocalDate  plusMonths   Example   LocalDate now              plusMonths  1      Better to specify time zone   LocalDate now  ZoneId of   America Montreal              plusMonths  1      java time  The java time framework is built into Java 8 and later  These classes supplant the old troublesome date-time classes such as java util Date   Calendar   amp  java text SimpleDateFormat  The Joda-Time team also advises migration to java time   To learn more  see the Oracle Tutorial  And search Stack Overflow for many examples and explanations   Much of the java time functionality is back-ported to Java 6  amp  7 in ThreeTen-Backport and further adapted to Android in ThreeTenABP   Date-only  If you want the date-only  use the LocalDate class   ZoneId z   ZoneId of   America Montreal      LocalDate today   LocalDate now  z         today toString    2017-01-23   Add a month    LocalDate oneMonthLater   today plusMonths  1         oneMonthLater toString    2017-02-23   Date-time  Perhaps you want a time-of-day along with the date    First get the current moment in UTC with a resolution of nanoseconds   Instant instant   Instant now      Adding a month means determining dates  And determining dates means applying a time zone  For any given moment  the date varies around the world with a new day dawning earlier to the east  So adjust that Instant into a time zone    ZoneId zoneId   ZoneId of   America Montreal     ZonedDateTime zdt   ZonedDateTime ofInstant  instant   zoneId      Now add your month  Let java time handle Leap month  and the fact that months vary in length   ZonedDateTime zdtMonthLater   zdt plusMonths  1      You might want to adjust the time-of-day to the first moment of the day when making this kind of calculation  That first moment is not always 00 00 00 0 so let java time determine the time-of-day   ZonedDateTime zdtMonthLaterStartOfDay   zdtMonthLater toLocalDate   atStartOfDay  zoneId        About java time  The java time framework is built into Java 8 and later  These classes supplant the troublesome old legacy date-time classes such as java util Date  Calendar   amp  SimpleDateFormat   The Joda-Time project  now in maintenance mode  advises migration to the java time classes   To learn more  see the Oracle Tutorial  And search Stack Overflow for many examples and explanations  Specification is JSR 310   Where to obtain the java time classes     Java SE 8  Java SE 9  and later   Built-in   Part of the standard Java API with a bundled implementation  Java 9 adds some minor features and fixes   Java SE 6 and Java SE 7   Much of the java time functionality is back-ported to Java 6  amp  7 in ThreeTen-Backport   Android   The ThreeTenABP project adapts ThreeTen-Backport  mentioned above  for Android specifically  See How to use ThreeTenABP        The ThreeTen-Extra project extends java time with additional classes  This project is a proving ground for possible future additions to java time  You may find some useful classes here such as Interval  YearWeek  YearQuarter  and more     Joda-Time  Update  The Joda-Time project is now in maintenance mode  Its team advises migration to the java time classes  I am leaving this section intact for posterity   The Joda-Time library offers a method to add months in a smart way   DateTimeZone timeZone   DateTimeZone forID   Europe Paris     DateTime now   DateTime now  timeZone    DateTime nextMonth   now plusMonths  1      You might want to focus on the day by adjust the time-of-day to the first moment of the day   DateTime nextMonth   now plusMonths  1   withTimeAtStartOfDay

[java] How do I add one month to current date in Java?

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