You can calculate a person’s age in years using Java 8’s LocalDate and Period API.

import java.time.LocalDate;
import java.time.Period;

public class AgeCalculator {
    public static void main(String[] args) {
        LocalDate birthDate = LocalDate.of(1990, 5, 15); // Change to actual birth date
        LocalDate currentDate = LocalDate.now();

        int age = Period.between(birthDate, currentDate).getYears();

        System.out.println("Age: " + age + " years");
    }
}

Using ChronoUnit.YEARS

import java.time.LocalDate;
import java.time.temporal.ChronoUnit;

public class AgeCalculatorChrono {
    public static void main(String[] args) {
        LocalDate birthDate = LocalDate.of(1990, 5, 15);
        LocalDate currentDate = LocalDate.now();

        long age = ChronoUnit.YEARS.between(birthDate, currentDate);

        System.out.println("Age: " + age + " years");
    }
}