Exo Age prénom...

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package exoduvendredi;

import java.util.Scanner;

/**
 *
 * @author Happy
 */
public class Exoduvendredi {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here

        //Demander un prénom

        Scanner sc = new Scanner(System.in);
        String String = sc.nextLine();

                System.out.print (" Entrez votre prénom: ");

        //Demander un âge

        int age;


        Scanner clavier = new Scanner(System.in);

        System.out.print("\n Entrez votre âge:");


        if (clavier.hasNextInt())//blindage du programme contre les double
        { age = clavier.nextInt();

            if (age >= 21){
                System.out.println("Welcome U're major come to the Wonderland");
            } else {
                System.out.println("\"Buuuh buuh buuuhhh U're maybe major but not in USA so get out of here");
            }

        } else {
            System.out.println("Don't kidding me boy");// ;)
        }
    }

}