Period minusDays() method in Java

An immutable copy of the Period object where some days are subtracted from it can be obtained using the minusDays() method in the Period class in Java. This method requires a single parameter i.e. the number of days to be subtracted and it returns the Period object with the subtracted days.

A program that demonstrates this is given as follows:

Example

 Live Demo

import java.time.Period;
public class Demo {
   public static void main(String[] args) {
      String period = "P5Y7M15D";
      Period p1 = Period.parse(period);
      System.out.println("The Period is: " + p1);
      Period p2 = p1.minusDays(5);
      System.out.println("The Period after subtracting 5 days is: " + p2);
   }
}

Output

The Period is: P5Y7M15D
The Period after subtracting 5 days is: P5Y7M10D

Now let us understand the above program.

First the current Period is displayed. Then an immutable copy of the Period where 5 days are subtracted is obtained using the minusDays() method and this is displayed. A code snippet that demonstrates this is as follows:

String period = "P5Y7M15D";
Period p1 = Period.parse(period);
System.out.println("The Period is: " + p1);
Period p2 = p1.minusDays(5);
System.out.println("The Period after subtracting 5 days is: " + p2);