Age After 10 Years

// Write a program to read your birthday from the console and print how old you are now and how old you will be after 10 years.

import java.time.LocalDate;
import java.util.Scanner;

public class AgeAfter10Years {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        System.out.println("Enter Date of your Birthday, exactly in this format: 'yyyy-MM-dd' :");
        Scanner reader = new Scanner(System.in);
        String inputDateString = reader.nextLine();

        LocalDate birthdayDate = LocalDate.parse(inputDateString);
        int birthYear = birthdayDate.getYear();
        int birthDayOfYear = birthdayDate.getDayOfYear();
        LocalDate today = LocalDate.now();
        int todayYear = today.getYear();
        int todayDayOfYear = today.getDayOfYear();
        int diffYearsNow = todayYear - birthYear;
        if (todayDayOfYear + 1 < birthDayOfYear) {
            diffYearsNow--;
        }

        System.out.printf("Today you are %d years old!\n", diffYearsNow);
        System.out.printf("After 10 years, you will be %d years old!\n",
                diffYearsNow + 10);
    }

}