Period of() method in Java with Examples

Last Updated : 28 Nov, 2018
The of() method of Period Class is used to obtain a period from given number of Years, Months, and Days as parameters. These parameters are accepted in the form of integers. This method returns a Period with the given number of years, months, and days. Syntax: 
public static Period of(
        int numberOfYears, 
        int numberOfMonths,
        int numberOfDays)
Parameters: This method accepts following parameters:
  • numberOfYears: This is used to represent the amount of years which may be negative.
  • numberOfMonths: This is used to represent the amount of months which may be negative.
  • numberOfDays: This is used to represent the amount of days which may be negative.
Returns: This function returns the period which is the Period object parsed with the given number of Years, Months, and Days. Below is the implementation of Period.of() method: Example 1: Java 
// Java code to demonstrate of() method

import java.time.Period;

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

        // Get the number of Years
        int numberOfYears = 1;

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

        // Get the number of Days
        int numberOfDays = 21;

        // Parse the given amounts into Period
        // using of() method
        Period p
            = Period.of(numberOfYears,
                        numberOfMonths,
                        numberOfDays);

        System.out.println(p.getYears() + " Years\n"
                           + p.getMonths() + " Months\n"
                           + p.getDays() + " Days");
    }
}
Output: 
1 Years
5 Months
21 Days
Example 2: Java 
// Java code to demonstrate of() method

import java.time.Period;

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

        // Get the number of Years
        int numberOfYears = -2;

        // Get the number of Months
        int numberOfMonths = 10;

        // Get the number of Days
        int numberOfDays = -11;

        // Parse the given amounts into Period
        // using of() method
        Period p
            = Period.of(numberOfYears,
                        numberOfMonths,
                        numberOfDays);

        System.out.println(p.getYears() + " Years\n"
                           + p.getMonths() + " Months\n"
                           + p.getDays() + " Days");
    }
}
Output: 
-2 Years
10 Months
-11 Days
Reference: https://docs.oracle.com/javase/9/docs/api/java/time/Period.html#of-int-int-int-
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