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);    }} |
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);    }} |
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)
