LocalDate minusDays() method in Java with Examples

The minusDays() method of LocalDate class in Java is used to subtract the number of specified day from this LocalDate and return a copy of LocalDate.For example, 2019-01-01 minus one day would result in 2018-12-31. This instance is immutable and unaffected by this method call.

Syntax:

public LocalDate minusDays(long daysToSubtract)

Parameters: This method accepts a single parameter daysToSubtract which represents the days to subtract, may be negative.

Return value: This method returns a LocalDate based on this date with the days subtracted, not null.

Exception: This method throws DateTimeException if the result exceeds the supported date range.

Below programs illustrate the minusDays() method:
Program 1:

// Java program to demonstrate
// LocalDate.minusDays() method

import java.time.*;

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

        // create a LocalDate object
        LocalDate date
            = LocalDate.parse("2018-11-13");

        // print instance
        System.out.println("LocalDate before"
                           + " subtracting days: " + date);

        // subtract 17 days
        LocalDate returnvalue
            = date.minusDays(17);

        // print result
        System.out.println("LocalDate after "
                           + " subtracting days: " + returnvalue);
    }
}

Output:

LocalDate before subtracting days: 2018-11-13
LocalDate after  subtracting days: 2018-10-27

Program 2:

// Java program to demonstrate
// LocalDate.minusDays() method

import java.time.*;

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

        // create a LocalDate object
        LocalDate date
            = LocalDate.parse("2018-12-24");

        // print instance
        System.out.println("LocalDate before"
                           + " subtracting days: " + date);

        // subtract -15 days
        LocalDate returnvalue
            = date.minusDays(-15);

        // print result
        System.out.println("LocalDate after "
                           + " subtracting days: " + returnvalue);
    }
}

Output:

LocalDate before subtracting days: 2018-12-24
LocalDate after  subtracting days: 2019-01-08

Reference:
https://docs.oracle.com/javase/10/docs/api/java/time/LocalDate.html#minusDays(long)