Authentification avec java

public void actionPerformed(ActionEvent e)
{
	login = field.getText();
	pass = new String(fieldPass.getPassword());
	if (authenticate(login, pass))
	{
		//action a faire si tu es authentifié
	}
}

public class authentification
   {
 
    public authentification
   {}

      public authentificate(String login ,String pass)
      {
         String username = "root";
         String password = "root";
         String url = "jdbc:mysql://localhost/projet";
 
         try
         {
			//connexion base
            Class.forName("com.mysql.jdbc.Driver");
            Connection connexion = DriverManager.getConnection(url,username,password);
            Statement instruction = connexion.createStatement();
            ResultSet resultat = instruction.executeQuery("SELECT * FROM UTILISATEUR");
 
            while(resultat.next())
            {
 
               if ((login.equals(resultat.getString("login"))==0) && (pass.equals(resultat.getString("password"))==0)) )
               { 
 
 
                  return true;
 
 
 
               }
               else{ return false;}
 
            }
         }
            catch (Exception e)
            {
               System.out.println("echec pilote : "+e);
            }
      }
   }