Period withMonths() method in Java with Examples

Last Updated : 28 Nov, 2018
The withMonths() method of Period Class is used to obtain a period with specified number of months. This number of months is passed as the parameter as integer value. Syntax: 
public Period withMonths(int numberOfMonths)
Parameters: This method accepts a parameter numberOfMonths which is the number of months to be changed in this Period. Returns: This function returns a Period with the number of months passed as the parameter. Below is the implementation of Period.withMonths() method: Example 1: Java 
// Java code to demonstrate withMonths() method

import java.time.Period;

class GFG {
    public static void main(String[] args)
    {

        // Get the String to be withMonthsd
        String period = "P1Y2M21D";

        // Parse the String into Period
        Period p = Period.parse(period);

        System.out.println("Period: " + p);

        // Get the number of months
        int numberOfMonths = 5;

        // Change the numberOfMonths of this Period
        // using withMonths() method
        System.out.println("New Period: "
                           + p.withMonths(numberOfMonths));
    }
}
Output: 
Period: P1Y2M21D
New Period: P1Y5M21D
Example 2: Java 
// Java code to demonstrate withMonths() method

import java.time.Period;

class GFG {
    public static void main(String[] args)
    {

        // Get the String to be withMonthsd
        String period = "-P1Y2M21D";

        // Parse the String into Period
        Period p = Period.parse(period);

        System.out.println("Period: " + p);

        // Get the number of months
        int numberOfMonths = -5;

        // Change the numberOfMonths of this Period
        // using withMonths() method
        System.out.println("New Period: "
                           + p.withMonths(numberOfMonths));
    }
}
Output: 
Period: P-1Y-2M-21D
New Period: P-1Y-5M-21D
Reference: https://docs.oracle.com/javase/9/docs/api/java/time/Period.html#withMonths-int-
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