Can someone solve this problem please ? An error occurs when I launch it

Question

import java.util.Scanner;
public class Program
{
public static void main(String[] args) {
// int age = (0);
System.out.println("Quel age avez vous ?");
Scanner age = new
Scanner(System.in);
System.out.println(age.nextLine());
if(age < 20){
System.out.println("Bienvenue !");
}
else {
System.out.println("trop vieux !!!");
}
}
}

Answer 1

Ty a lot I was stuck and now I can continue and do so much more things !