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 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 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
