ChronoPeriod subtractFrom() method in Java with Examples

The subtractFrom(Temporal) method of ChronoPeriod Interface in java.time.chrono package is used subtract this ChronoPeriod to the specified temporal object, passed as the parameter. Syntax:

Temporal subtractFrom(Temporal temporalObject)

Parameters: This method accepts a parameter temporalObject which is the amount to be adjusted in this ChronoPeriod. It should not be null. Return Value: This method returns an object of the same type with the temporalObject adjusted to it. Exception: This method throws:

DateTimeException: if unable to subtract.
ArithmeticException: if numeric overflow occurs.

Below examples illustrate the ChronoPeriod.subtractFrom() method: Program 1:

Java

// Java code to show the function subtractFrom()
// to subtract the two given periods

import java.time.*;
import java.time.chrono.*;
import java.time.temporal.ChronoUnit;

public class ChronoPeriodDemo {

    // Driver Code
    public static void main(String[] args)
    {
        // Defining period
        int year = 4;
        int months = 11;
        int days = 10;
        ChronoPeriod p1 = Period.of(year, months, days);

        // Get the time to be adjusted
        LocalDateTime currentTime
            = LocalDateTime.now();

        // Adjust the time
        // using subtractFrom() method
        System.out.println(
            p1.subtractFrom(currentTime));
    }
}

Output:

2014-07-07T14:22:21.929

Program 2:

Java

// Java code to show the function subtractFrom()
// to subtract the two given periods

import java.time.*;
import java.time.chrono.*;
import java.time.temporal.ChronoUnit;

public class ChronoPeriodDemo {

    // Driver Code
    public static void main(String[] args)
    {
        // Defining period
        int year1 = 2;
        int months1 = 7;
        int days1 = 8;
        ChronoPeriod p1 = Period.of(year1, months1, days1);

        // Get the time to be adjusted
        LocalDateTime currentTime
            = LocalDateTime.now();

        // Adjust the time
        // using subtractFrom() method
        System.out.println(
            p1.subtractFrom(currentTime));
    }
}

Output:

2016-11-09T14:22:26.600

Reference: https://docs.oracle.com/javase/9/docs/api/java/time/chrono/ChronoPeriod.html#subtractFrom-java.time.temporal.Temporal-

ChronoPeriod subtractFrom() method in Java with Examples

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