Probleme en java

Scanner s = new Scanner(System.in);
int i = s.nextInt();

import java.util.*;

public class PgmTest
{
	Scanner scanner = new Scanner(System.in);
	
	public static void main(String[] args)
	{
		System.out.print("Entrez un nombre : ");
		int nombre;
		try
		{
			nombre = scanner.nextInt();
		}
		catch(InputMismatchException e)
		{
			System.out.println("Faut entrer des chiffres loulou ^^");
		}

		System.out.println("\nVous avez entré : " + nombre);
	}
}

nextInt

public int nextInt()

    Scans the next token of the input as an int.

    An invocation of this method of the form nextInt() behaves in exactly the same way as the invocation nextInt(radix), where radix is the default radix of this scanner.

    Returns:
        the int scanned from the input 
    Throws:
        InputMismatchException - if the next token does not match the Integer regular expression, or is out of range 
        NoSuchElementException - if input is exhausted 
        IllegalStateException - if this scanner is close