withMonth(int month) method of the MonthDay class used to alter the month-of-year of MonthDay object using month passed as a parameter and after that method returns the copy of altered MonthDay.If the day-of-month is invalid for the specified month, the day will be adjusted to the last valid day-of-month. This instance is immutable and unaffected by this method call.
Syntax:
public MonthDay withMonth(int month)
Parameters: This method accepts month as parameter which is the month-of-year to set in the returned month-day, from 1 (January) to 12 (December).
Return value: This method returns a MonthDay based on this month-day with the requested month.
Exception: This method throws DateTimeException if the month-of-year value is invalid.
Below programs illustrate the withMonth() method:
Program 1:
// Java program to demonstrate// MonthDay.withMonth() method  import java.time.*;import java.time.temporal.*;  public class GFG {    public static void main(String[] args)    {          // create a MonthDay object        MonthDay monthday            = MonthDay.of(8, 28);          // print instance        System.out.println("MonthDay before"                           + " applying method: "                           + monthday);          // apply withMonth method of MonthDay class        MonthDay updatedlocal = monthday.withMonth(1);          // print instance        System.out.println("MonthDay after"                           + " applying method: "                           + updatedlocal);    }} |
MonthDay before applying method: --08-28 MonthDay after applying method: --01-28
Program 2:
// Java program to demonstrate// MonthDay.withMonth() method  import java.time.*;import java.time.temporal.*;  public class GFG {    public static void main(String[] args)    {          // create a MonthDay object        MonthDay monthday            = MonthDay.of(10, 31);          // print instance        System.out.println("MonthDay before"                           + " applying method: "                           + monthday);          // apply withMonth method of MonthDay class        MonthDay updatedlocal = monthday.withMonth(5);          // print instance        System.out.println("MonthDay after"                           + " applying method: "                           + updatedlocal);    }} |
MonthDay before applying method: --10-31 MonthDay after applying method: --05-31
References: https://docs.oracle.com/javase/10/docs/api/java/time/MonthDay.html#withMonth(int)
