MonthDay withDayOfMonth() Method in Java with Examples

Last Updated : 15 Jan, 2019

withDayOfMonth(int dayOfMonth) method of the MonthDay class used to alter the day-of-month of MonthDay object using dayOfMonth passed as a parameter and after that method returns the copy of altered MonthDay.An exception is thrown If the day-of-month value is invalid for the specified month after altering operation.

Syntax:

public MonthDay withDayOfMonth(int dayOfMonth)

Parameters: This method accepts dayOfMonth as parameter which is the day-of-month to set in the return month-day, from 1 to 31.

Return value: This method returns a MonthDay based on this month-day with the requested day.

Exception: This method throws DateTimeException if the day-of-month value is invalid, or if the day-of-month is invalid for the month.

Below programs illustrate the withDayOfMonth() method:
Program 1:

// Java program to demonstrate 
// MonthDay.withDayOfMonth() 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 withDayOfMonth method 
        // of MonthDay class 
        MonthDay updatedlocal 
            = monthday.withDayOfMonth(21); 
  
        // print instance 
        System.out.println("MonthDay after"
                           + " applying method: "
                           + updatedlocal); 
    } 
} 

Output:

MonthDay before applying method: --08-28
MonthDay after applying method: --08-21

Program 2:

// Java program to demonstrate 
// MonthDay.withDayOfMonth() 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 withDayOfMonth method 
        // of MonthDay class 
        MonthDay updatedlocal 
            = monthday.withDayOfMonth(12); 
  
        // print instance 
        System.out.println("MonthDay after"
                           + " applying method: "
                           + updatedlocal); 
    } 
} 

Output:

MonthDay before applying method: --10-31
MonthDay after applying method: --10-12

References: https://docs.oracle.com/javase/10/docs/api/java/time/MonthDay.html#withDayOfMonth(int)

MonthDay withMonth() Method in Java with Examples

AmanSingh2210

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MonthDay withDayOfMonth() Method in Java with Examples

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