Question

how to calculate age of user by birth year? comment calculer age de l'utilisateur avec l'année de naissance?

Answer 1

from datetime import date

now = date.today()
birthDay = date(2000, 3, 14)
delta = now - birthDay
print('birt day: ', birthDay)
print('now: ', now)
print('age: ', delta.days // 365) # integral division (ignoring the fraction part)

Answer 2

Python

birthYear = int(input("Enter your birth year: "))
#Current year may vary so it is called inside the input function
currentYear = int(input("Enter current year: "))
age = currentYear-birthYear
print("Age is: ",age,"years")

Java

import java.util.Scanner;

public class Main{
    public static void main(String [] args){
        Scanner sc = new Scanner(System.in);
        System.out.println("Enter your birth year: ");
        int birthYear = sc.nextInt();
         System.out.println("Enter the current year: ");
        int currentYear = sc.nextInt();
        int age = currentYear-birthYear;
        System.out.println("Age is: "+age+" years");
    }
}