Period withDays() method in Java with Examples

The withDays() method of Period Class is used to obtain a period with specified number of days. This number of days is passed as the parameter as integer value.

Syntax:

public Period withDays(int numberOfDays)

Parameters: This method accepts a parameter numberOfDays which is the number of days to be changed in this Period.



Returns: This function returns a Period with the number of days passed as the parameter.

Below is the implementation of Period.withDays() method:

Example 1:

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// Java code to demonstrate withDays() method
  
import java.time.Period;
  
class GFG {
    public static void main(String[] args)
    {
  
        // Get the String to be withDaysd
        String period = "P1Y2M21D";
  
        // Parse the String into Period
        Period p = Period.parse(period);
  
        System.out.println("Period: " + p);
  
        // Get the number of days
        int numberOfDays = 5;
  
        // Change the numberOfDays of this Period
        // using withDays() method
        System.out.println("New Period: "
                           + p.withDays(numberOfDays));
    }
}

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Output:

Period: P1Y2M21D
New Period: P1Y2M5D

Example 2:

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// Java code to demonstrate withDays() method
  
import java.time.Period;
  
class GFG {
    public static void main(String[] args)
    {
  
        // Get the String to be withDaysd
        String period = "-P1Y2M21D";
  
        // Parse the String into Period
        Period p = Period.parse(period);
  
        System.out.println("Period: " + p);
  
        // Get the number of days
        int numberOfDays = -5;
  
        // Change the numberOfDays of this Period
        // using withDays() method
        System.out.println("New Period: "
                           + p.withDays(numberOfDays));
    }
}

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Output:

Period: P-1Y-2M-21D
New Period: P-1Y-2M-5D

Reference: https://docs.oracle.com/javase/9/docs/api/java/time/Period.html#withDays-int-



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