The negated() method of Period class in Java is used to return a new instance of Period after negating all the elements of the period YEAR, MONTH, DAY.
Syntax:
public Period negated()
Parameters: This method does not accepts any parameter.
Return Value: This method returns a new instance of Period after negating each element of the period.
Exceptions: It throws an ArithmeticException. This exception is caught if numeric overflow occurs.
Below program illustrates the above method:
Program 1:
// Java code to show the function to negate all// elements of the periodimport java.time.Period;import java.time.temporal.ChronoUnit;  public class PeriodClass {      // Function to negate given periods    static void toNegate(Period p1)    {          System.out.println(p1.negated());    }      // Driver Code    public static void main(String[] args)    {        // Defining period        int year = 4;        int months = 11;        int days = 10;        Period p1 = Period.of(year, months, days);          toNegate(p1);    }} |
Output:
P-4Y-11M-10D
Program 2:
// Java code to show the function to negate all// elements of the periodimport java.time.Period;import java.time.temporal.ChronoUnit;  public class PeriodClass {      // Function to negate given periods    static void toNegate(Period p1)    {          System.out.println(p1.negated());    }      // Driver Code    public static void main(String[] args)    {        // Defining period        int year = -4;        int months = -11;        int days = -10;        Period p1 = Period.of(year, months, days);          toNegate(p1);    }} |
Output:
P4Y11M10D
Reference: https://docs.oracle.com/javase/8/docs/api/java/time/Period.html#negated–
